Patent list

We summarize in this page, in chronological order divided by year, all patent classified inside the wiki. This page use as ordering key the publication date, that sometimes is quite late respect to the application one. From an historic standpoint using the application date, as done in this other page, should be more correct, because that date is nearer to the time of invention birth. Note that none of these dates necessarily correspond to the market introduction of the innovation described by the patent, as there are case when it occurred both before and after the publication of the patent.

1875

• Patent US-159513, applied in 1874, by John A. Holland, John Holland Pen Company. Portamine.

1876

• Patent US-174965, applied in 1875, by Duncan Mackinnon, MacKinnon. Penna a stilo.

• Patent US-180715, applied in 1876, by John A. Holland, John Holland Pen Company. Custodia matita meccanica.

1877

• Patent US-189304, applied in 1876, by Alonzo T. Cross, Cross. Penna a stilo.

• Patent US-194158, applied in 1877, by George W. Mabie, Swan. Cannuccia.

1878

• Patent US-199621, applied in 1877, by Alonzo T. Cross, Cross. Penna a stilo.

• Patent US-202654, applied in 1878, by John A. Holland, John Holland Pen Company. Portamine.

• Patent US-202655, applied in 1878, by John A. Holland, John Holland Pen Company. Penna a stilo.

• Patent US-206200, applied in 1878, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-D010872, applied in 1878, by Charles W. Gessner, Aikin Lambert. Portamine telescopico.

1879

• Patent US-211575, applied in 1878, by John A. Holland, John Holland Pen Company. Penna a stilo.

• Patent US-D010984, applied in 1878, by James C. Aikin, Aikin Lambert. Involucro per fusto.

• Patent US-214795, applied in 1879, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-217888, applied in 1879, by Duncan Mackinnon, MacKinnon. Penna a stilo.

• Patent US-D011457, applied in 1879, by James C. Aikin, Aikin Lambert. Custodia portamine.

• Patent US-222959, applied in 1879, by William W. Stewart, Swan. Proto-stilografica.

1880

• Patent US-D011737, applied in 1879, by James C. Aikin, Aikin Lambert. Involucro per fusto.

• Patent US-D011806, applied in 1879, by James C. Aikin, Aikin Lambert. Involucro per matita.

1881

• Patent US-237139, applied in 1880, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-237454, applied in 1880, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-241216, applied in 1880, by John A. Holland, John Holland Pen Company. Processo per fusioni di iridio.

• Patent US-RE9890, applied in 1877, by Alonzo T. Cross, Cross. Penna a stilo.

1882

• Patent US-253953, applied in 1881, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-254175, applied in 1881, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-255205, applied in 1881, by Marvin C. Stone, Unbranded. Proto-stilografica.

• Patent US-258298, applied in 1882, by John A. Holland, John Holland Pen Company. Custodia matita meccanica.

• Patent US-258299, applied in 1878, by John A. Holland, John Holland Pen Company. Penna a stilo.

• Patent US-263392, applied in 1882, by Alonzo T. Cross, Cross. Matita meccanica.

• Patent US-264854, applied in 1882, by Francis C. Brown, Caw's. Penna a stilo.

• Patent US-269290, applied in 1881, by John A. Holland, John Holland Pen Company. Pennino.

1883

• Patent US-275912, applied in 1881, by John A. Holland, John Holland Pen Company. Penna a stilo.

• Patent US-279388, applied in 1882, by John A. Holland, John Holland Pen Company. Custodia matita meccanica.

• Patent US-285895, applied in 1882, by John A. Holland, John Holland Pen Company. Processo per leghe di iridio.

• Patent US-288290, applied in 1883, by Paul E. Wirt, Wirt. Penna a pennino sdoppiabile.

1884

• Patent US-292313, applied in 1882, by John A. Holland, John Holland Pen Company. Meccanismo portamine.

• Patent US-293545, applied in 1883, by Lewis E. Waterman, Waterman. Stilografica e alimentatore.

• Patent US-295395, applied in 1883, by Hezekiah Hewitt, Ormiston & Glass. Pennino da intinzione.

• Patent US-297420, applied in 1882, by Henry C. Klagges, Esterbrook. Proto stilografica.

• Patent US-298582, applied in 1883, by John A. Holland, John Holland Pen Company. Proto-stilografica.

• Patent US-298767, applied in 1883, by James Morton, A. Morton & Co.. Proto-stilografica.

• Patent US-307735, applied in 1883, by Lewis E. Waterman, Waterman. Stilografica e alimentatore.

1885

• Patent US-311554, applied in 1884, by Paul E. Wirt, Wirt. Alimentatore overfeed.

• Patent US-314547, applied in 1884, by William W. Stewart, Swan. Alimentatore.

• Patent US-324393, applied in 1885, by Rhodes G. Lockwood, Sterling Fountain Pen. Calamaio.

• Patent US-330358, applied in 1885, by Paul E. Wirt, Wirt. Alimentatore overfeed.

• Patent US-333104, applied in 1885, by Edward A. Brandeburg, Unbranded. Serbatoio per pennino da intinzione.

1886

• Patent US-356996, applied in 1886, by Frederick J. W. Fischer, Eagle. Cannuccia a serbatoio.

• Patent US-340865, applied in 1885, by Dewitt C. Demarest, Eagle. Proto-stilografica.

• Patent US-345411, applied in 1886, by Francis C. Brown, Caw's. Alimentatore overfeed.

• Patent US-351033, applied in 1886, by John A. Holland, John Holland Pen Company. Alimentatore e sezione.

• Patent US-353053, applied in 1886, by Dewitt C. Demarest, Eagle. Alimentatore.

• Patent US-353399, applied in 1886, by Francis C. Brown, David W. Beaumel, Caw's. Alimentatore e sezione.

• Patent US-354664, applied in 1886, by William W. Stewart, Swan. Proto-stilografica.

1887

• Patent US-358525, applied in 1886, by Paul E. Wirt, Wirt. Alimentatore overfeed.

• Patent US-361493, applied in 1886, by Dewitt C. Demarest, Eagle. Alimentatore.

• Patent US-374140, applied in 1887, by Francis C. Brown, Caw's. Alimentatore.

1888

• Patent US-378986, applied in 1886, by William W. Stewart, Swan. Proto-stilografica.

• Patent US-378987, applied in 1887, by William W. Stewart, Swan. Alimentatore.

1889

• Patent US-399306, applied in 1888, by Paul E. Wirt, Wirt. Costruzione pennino.

• Patent US-408000, applied in 1888, by Dewitt C. Demarest, Eagle. Alimentatore.

• Patent US-D019277, applied in 1889, by Edward Todd Jr., Swan. Decorazione fusto.

• Patent US-D019278, applied in 1889, by Edward Todd Jr., Swan. Decorazione fusto.

• Patent US-415838, applied in 1889, by John A. Holland, John Holland Pen Company. Stilografica.

• Patent US-416944, applied in 1888, by George S. Parker, The Parker Pen Company. Sezione e alimentatore.

1890

• Patent US-422474, applied in 1889, by Otto E. Weidlich, Weidlich. Alimentatore superiore.

• Patent US-423804, applied in 1889, by George S. Parker, The Parker Pen Company. Sezione e alimentatore.

• Patent US-426813, applied in 1889, by John A. Holland, John Holland Pen Company. Proto-stilografica.

• Patent US-426692, applied in 1889, by William W. Stewart, Swan. Alimentatore overfeed.

• Patent US-426758, applied in 1890, by Claes W. Boman, Eagle. Caricamento a cartuccia.

• Patent US-428969, applied in 1889, by Norman C. Stiles, Unbranded. Sistema di caricamento.

1891

• Patent US-448360, applied in 1890, by John Oliphant, Conklin Pen Manufacturing Co.. Caricamento a sacchetto di gomma.

• Patent US-455023, applied in 1890, by George S. Parker, The Parker Pen Company. Alimentatore.

1892

• Patent US-466950, applied in 1891, by William Thomas Shaw, De La Rue - Onoto. Il progetto della Pelican.

• Patent US-474940, applied in 1891, by John S. Barnes, Waterman. Custodia boccetta di inchiostro.

• Patent US-478653, applied in 1890, by William W. Stewart, Swan. Sistema di alimentazione.

• Patent US-480751, applied in 1890, by William W. Stewart, Swan. Alimentatore overfeed.

• Patent US-485795, applied in 1892, by John A. Holland, John Holland Pen Company. Alimentatore.

1893

• Patent US-491795, applied in 1890, by David W. Beaumel, Beaumel. Alimentatore overfeed.

• Patent US-510145, applied in 1893, by Woodruf Post, Post Fountain Pen. Caricamento a siringa.

• Patent CH-6035, applied in 1892, Roeder. Pennino doppio.

• Patent US-501895, applied in 1893, by Morris W. Moore, Moore Pen Company. Caricamento non-leakable.

• Patent US-507348, applied in 1893, by David W. Beaumel, Beaumel. Una penna a stilo.

• Patent US-510439, applied in 1892, by George S. Parker, The Parker Pen Company. Alimentatore overfeed.

1894

• Patent US-512319, applied in 1893, by George S. Parker, The Parker Pen Company. Alimentatore Lucky Curve.

• Patent US-542450, applied in 1894, by William W. Stewart, Swan. Sistema di caricamento.

• Patent US-523234, applied in 1894, by Edward G. Peck, Frederick O'Meara, A. A. Waterman. Caricamento rientrante.

• Patent US-525895, applied in 1894, by Eugene M. Gordon, Unbranded. Sistema di alimentazionie.

• Patent US-526425, applied in 1893, by Paul E. Wirt, Wirt. Caricamento rientrante.

• Patent US-526426, applied in 1893, by Paul E. Wirt, Wirt. Caricamento rientrante.

• Patent US-526427, applied in 1893, by Paul E. Wirt, Wirt. Caricamento rientrante.

• Patent US-526428, applied in 1894, by Paul E. Wirt, Wirt. Cappuccio a tenuta.

1895

• Patent US-533350, applied in 1893, by Walter F. Cushing, Moore Pen Company. Alimentatore overfeed.

• Patent US-533942, applied in 1894, by Francis C. Brown, Caw's. Variante di non-leakable filler.

• Patent US-549166, applied in 1895, by William W. Stewart, Swan. Sistema di alimentazione.

• Patent US-551895, applied in 1895, by Henry Horton, Edward G. Peck, A. A. Waterman. Caricamento rientrante.

1896

• Patent US-556522, applied in 1895, by Otto E. Weidlich, Weidlich. Alimentatore.

• Patent US-559034, applied in 1894, by James W. Laughlin, Laughlin. Blocco afflusso inchiostro.

• Patent US-559422, applied in 1895, by Lewis E. Waterman, Waterman. Alimentatore.

• Patent US-564938, applied in 1896, by Amos J. Scritchfield, Unbranded. Alimentatore.

• Patent US-567151, applied in 1894, by Morris W. Moore, Moore Pen Company. Caricamento non-leakable.

• Patent US-567152, applied in 1894, by Morris W. Moore, Moore Pen Company. Caricamento non-leakable.

1897

• Patent US-578054, applied in 1896, by William I. Ferris, Waterman. Caricamento pump filler.

• Patent DE-92299, applied in 1895, Klio-Werk. Penna a serbatoio.

• Patent US-588708, applied in 1896, by William W. Stewart, Swan. Sistema alimentazione.

• Patent US-588709, applied in 1897, by William W. Stewart, Swan. Sistema alimentazione.

• Patent CH-13885, applied in 1897, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-592847, applied in 1897, by Arthur A. Waterman, A. A. Waterman. Alimentatore.

• Patent US-595373, applied in 1896, by Alonzo T. Cross, Cross. Proto-stilografica.

1898

• Patent US-599590, applied in 1897, by Claes W. Boman, Eagle. Costruzione fusto.

• Patent US-599591, applied in 1897, by Claes W. Boman, Eagle. Costruzione fusto.

• Patent US-599592, applied in 1897, by Claes W. Boman, Eagle. Controllo alimentazione.

• Patent US-599616, applied in 1897, by Eveline C. Lindley, Eagle. Fermaglio da tasca per lapis.

• Patent US-603463, applied in 1897, by David W. Beaumel, Beaumel. Alimentatore e sezione.

• Patent DK-1592C, applied in 1897, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-604690, applied in 1895, by Lewis E. Waterman, Waterman. Chiusura cappuccio.

• Patent US-D028838, applied in 1898, by Le Roy C. Fairchild, Unbranded. Portamine telescopico.

• Patent US-606231, applied in 1897, by George S. Parker, The Parker Pen Company. Alimentatore Lucky Curve.

• Patent US-607397, applied in 1897, by Lewis E. Waterman, Waterman. Alimentatore.

• Patent US-607398, applied in 1897, by Lewis E. Waterman, Waterman. Alimentatore.

• Patent US-607399, applied in 1897, by Lewis E. Waterman, Waterman. Alimentatore.

• Patent US-607400, applied in 1897, by Lewis E. Waterman, Waterman. Alimentatore overfeed.

• Patent US-607401, applied in 1897, by Lewis E. Waterman, Waterman. Alimentatore.

• Patent DE-99102, applied in 1897, by Auguste Henri Garot, Unbranded. Tiralinee.

• Patent US-610428, applied in 1898, by Claes W. Boman, Eagle. Alimentatore.

• Patent US-612013, applied in 1897, by Francis C. Brown, Caw's, Waterman. Caricamento rientrante.

• Patent US-614630, applied in 1898, by William W. Stewart, Swan. Chiusura cappuccio.

1899

• Patent US-D029964, applied in 1898, by Theodore E. Smith, Spencerian. Pennino da intinzione.

• Patent US-619701, applied in 1897, by Arthur A. Waterman, A. A. Waterman, Sterling Fountain Pen. Alimentatore.

• Patent US-619702, applied in 1897, by Arthur A. Waterman, A. A. Waterman, Sterling Fountain Pen. Stilografica middle-joint.

• Patent GB-189902000, applied in 1899, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-622256, applied in 1898, by George S. Parker, The Parker Pen Company. Giunzione jointless.

• Patent US-625722, applied in 1898, by William I. Ferris, Waterman. Alimentatore spoon feed.

• Patent US-629519, applied in 1899, by Stephen J. Meyerpeter, The Parker Pen Company. Giunzione jointless.

• Patent CH-282E, applied in 1899, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-630526, applied in 1899, by William W. Stewart, Swan. Sistema di caricamento.

• Patent US-630527, applied in 1899, by William W. Stewart, Swan. Sistema di caricamento.

• Patent US-631824, applied in 1899, by Robert P. Robinson, Unbranded. Cappuccio per stilografica.

• Patent US-631909, applied in 1898, by William W. Stewart, Swan. Sistema di caricamento.

• Patent US-632320, applied in 1899, by Edgar E. Nelthorpe, George H. Williamson, Williamson Pen Co.. Giunzione jointless.

• Patent US-632633, applied in 1899, by Claes W. Boman, Eagle. Penna a serbatoio estraibile.

• Patent AT-179B, applied in 1897, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-633538, applied in 1897, by Arthur A. Waterman, Frederick W. Stevens, A. A. Waterman, Sterling Fountain Pen. Sistema di regolazione.

• Patent US-634013, applied in 1899, by Oliver R. Mitchell, Sterling Fountain Pen. Chiusura cappuccio.

• Patent US-634029, applied in 1897, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-634398, applied in 1899, by Dewitt C. Demarest, Eagle. Alimentatore.

• Patent US-635700, applied in 1899, by George S. Parker, The Parker Pen Company. Giunzione jointless.

• Patent AT-398B, applied in 1899, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-638779, applied in 1899, by Arthur A. Waterman, A. A. Waterman. Alimentatore.

• Patent DK-2722C, applied in 1898, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

1900

• Patent GB-189923550, applied in 1899, by Johannes Paul Steinbach, Karl Hermann Strache, Unbranded. Penna a serbatoio.

• Patent US-642151, applied in 1899, by George S. Parker, The Parker Pen Company. Giunzione jointless.

• Patent US-646383, applied in 1897, by William I. Ferris, Waterman. Caricamento pump filler.

• Patent US-648839, applied in 1900, by Claes W. Boman, Eagle. Alimentatore overfeed.

• Patent US-651735, applied in 1899, by Paul E. Wirt, Wirt. Alimentatore.

• Patent US-651736, applied in 1899, by Paul E. Wirt, Wirt. Penna a "doppio serbatoio".

• Patent US-651737, applied in 1900, by Paul E. Wirt, Wirt. Penna a "doppio serbatoio".

• Patent US-651738, applied in 1900, by Paul E. Wirt, Wirt. Penna a "doppio serbatoio".

• Patent US-653818, applied in 1900, by George S. Parker, The Parker Pen Company. Cappuccio a frizione.

• Patent US-655423, applied in 1900, by Henry J. Upton, Sterling Fountain Pen. Costruzione cappuccio.

• Patent US-657483, applied in 1896, by Alonzo T. Cross, Cross. Proto-stilografica.

• Patent US-662796, applied in 1900, by Samuel Kraus, Eagle. Anellino sul cappuccio.

1901

• Patent US-655736, applied in 1900, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-668759, applied in 1900, by William W. Stewart, Swan. Penna stilografica.

• Patent US-668760, applied in 1900, by William W. Stewart, Swan. Penna stilografica.

• Patent US-670088, applied in 1900, by Harry W. Stone, A. A. Waterman. Sistema di alimentazione.

• Patent AT-3719B, applied in 1900, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-673359, applied in 1900, by Franklin S. Cooley, Franklin Fountain Pen. Alimentatore overfeed.

• Patent US-673451, applied in 1899, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent GB-190108860, applied in 1901, by William Wells Sanford, Sanford and Bennet. Alimentatore.

• Patent US-675698, applied in 1900, by Paul E. Wirt, Wirt. Alimentatore.

• Patent US-675699, applied in 1900, by Paul E. Wirt, Wirt. Blocco afflusso inchiostro.

• Patent DE-121245, applied in 1900, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent US-677008, applied in 1900, by Walter W. Winton, Eagle. Alimentatore.

• Patent US-678547, applied in 1901, by Seth S. Crocker, Crocker. Caricamento blow filler.

• Patent US-679790, applied in 1901, by William W. Stewart, Swan. Alimentatore.

• Patent US-680117, applied in 1901, by Claes W. Boman, Eagle. Cappuccio a vite.

• Patent GB-190006677, applied in 1900, by Eduard Reisert, Klio-Werk. Penna a serbatoio.

• Patent GB-190023217, applied in 1900, by Eduard Reisert, Klio-Werk. Penna a serbatoio combinata.

• Patent US-683763, applied in 1901, by John A. Holland, John Holland Pen Company. Cappuccio protettivo retrattile.

• Patent US-685258, applied in 1901, by Roy Conklin, Conklin Pen Manufacturing Co.. Crescent filler.

• Patent US-686920, applied in 1901, by Joseph F. Betzler, Laughlin. Penna stilografica.

1902

• Patent US-691974, applied in 1901, by William W. Sanford, Sanford and Bennet. Alimentatore.

• Patent US-692009, applied in 1898, by Frederick Gilbert, Waterman. Cappuccio di sicurezza.

• Patent US-697975, applied in 1901, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent US-698859, applied in 1901, by William W. Sanford, Sanford and Bennet. Penna a stilo.

• Patent US-698881, applied in 1896, by Lewis E. Waterman, Waterman. Alimentatore.

• Patent US-698882, applied in 1898, by Lewis E. Waterman, Waterman. Cappuccio conico.

• Patent AT-7500B, applied in 1900, by Eduard Reisert, Klio-Werk. Penna a serbatoio combinata.

• Patent US-700909, applied in 1901, by William G. Frazer, A. A. Waterman. Caricamento safety.

• Patent GB-190209634, applied in 1902, by William Wells Sanford, Sanford and Bennet. Variante di blow filler.

• Patent US-703418, applied in 1902, by John A. Holland, John Holland Pen Company. Alimentatore.

• Patent US-703479, applied in 1902, by William W. Sanford, Sanford and Bennet. Variante di blow filler.

• Patent US-706140, applied in 1901, by Paul E. Wirt, Wirt. Alimentatore.

• Patent US-706141, applied in 1901, by Paul E. Wirt, Wirt. Alimentatore overfeed.

• Patent US-711988, applied in 1902, by George W. Mabie, Swan. Fondello per cappuccio.

• Patent US-714283, applied in 1901, by Alonzo T. Cross, Cross. Alimentatore overfeed.

• Patent CH-24220, applied in 1901, by Georg Fend, Karl Fend, Fend. Matita meccanica.

• Patent US-716489, applied in 1902, by John Slater, Swan. Attacco cappuccio della Ladies Swan Pen.

1903

• Patent GB-190213133, applied in 1902, by George William Perks, Frederik Charles Thacker, Unbranded. Caricamento bulb filler.

• Patent US-719529, applied in 1901, by Harry W. Stone, A. A. Waterman. Precursore twist filler.

• Patent US-721549, applied in 1901, by August Eberstein, Boston Pen. Precursore twist filler.

• Patent US-723112, applied in 1902, by Paul E. Wirt, Wirt. Alimentatore overfeed.

• Patent US-723113, applied in 1902, by Paul E. Wirt, Wirt. Alimentatore.

• Patent US-723726, applied in 1902, by George W. Perks, Frederick C. Thacker, Unbranded. Caricamento a pompetta.

• Patent US-724983, applied in 1903, by Paul E. Wirt, Wirt. Alimentatore.

• Patent US-724984, applied in 1903, by Paul E. Wirt, Wirt. Alimentatore.

• Patent FR-325153, applied in 1902, by Alexander Munro, Research Fountain Pen. Protostilografica.

• Patent US-726495, applied in 1902, by John S. Barnes, Waterman. Caricamento a levetta.

• Patent US-732117, applied in 1903, by Albert E. Schaaf, Autofiller. Caricamento a torsione.

• Patent US-733491, applied in 1903, by Jessie I. Litchfield, Unbranded. Calamaio per intinzione.

• Patent US-734116, applied in 1902, by John Blair, Unbranded. Penna con pennino ad ago.

• Patent US-734563, applied in 1902, by Frank M. Kegrize, Kegrize. Alimentatore.

• Patent US-735659, applied in 1903, by William I. Ferris, Waterman. Alimentatore.

• Patent US-736710, applied in 1903, by William I. Ferris, Waterman. Alimentatore.

• Patent US-738859, applied in 1902, by Huston Taylor, Aikin Lambert. Pompetta per caricamento.

• Patent US-739720, applied in 1901, by Jay G. Rider, Perfection. Giunzione jointless.

• Patent CA-83131, applied in 1902, by Alexander Munro, Research Fountain Pen. Protostilografica.

• Patent US-742036, applied in 1903, by Edward J. Kastner, Waterman. Cappuccio e sezione.

• Patent US-744642, applied in 1903, by Harry W. Stone, A. A. Waterman. Caricamento a torsione.

• Patent FR-333684, applied in 1903, by Eduard Reisert, Klio-Werk. Penna rientrante.

• Patent US-745481, applied in 1902, by Roy Conklin, Conklin Pen Manufacturing Co.. Crescent filler.

• Patent US-747948, applied in 1902, by William F. Cushman, Moore Pen Company. Caricamento tipo non-leakable.

1904

• Patent US-750271, applied in 1902, by August Eberstein, Boston Pen. Alimentatore a pettine.

• Patent US-750430, applied in 1903, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent US-750546, applied in 1903, by Frank M. Kegrize, Kegrize. Alimentatore.

• Patent US-750583, applied in 1903, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent US-750928, applied in 1902, by Irving G. Woodward, Unbranded. Calamaio per intinzione.

• Patent US-D036798, applied in 1903, by Egon Lothar Schmitz, Eberhard-Faber. Porta matita.

• Patent DE-148564, applied in 1902, by Alexander Munro, Research Fountain Pen. Protostilografica.

• Patent GB-190308198, applied in 1903, by Eduard Reisert, Klio-Werk. Penna rientrante.

• Patent US-754000, applied in 1902, by Alexander Munro, Research Fountain Pen. Protostilografica.

• Patent GB-190400459, applied in 1904, by John Everard Langill, John Toker Langill, Langill Fountain Pen and Brush Company. Penna a serbatoio.

• Patent US-756076, applied in 1903, by Huston Taylor, Aikin Lambert. Pompetta per caricamento.

• Patent US-756778, applied in 1904, by Roy Conklin, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-757664, applied in 1903, by Frank M. Kegrize, Kegrize. Alimentatore.

• Patent US-758930, applied in 1903, by George S. Parker, The Parker Pen Company. Sistema di caricamento.

• Patent US-763517, applied in 1903, by Harry W. Stone, A. A. Waterman. Pennino.

• Patent US-764227, applied in 1904, by August Eberstein, Boston Pen. Cappuccio a tenuta.

• Patent DE-152729, applied in 1903, by Ignaz Timar, Unbranded. Calamaio.

• Patent US-764652, applied in 1903, by Paul E. Wirt, Wirt. Caricamento a siringa.

• Patent US-760829, applied in 1904, by Otto E. Weidlich, Weidlich. Alimentatore.

• Patent US-766560, applied in 1904, by Otto E. Weidlich, Weidlich. Sistema di caricamento.

• Patent US-767208, applied in 1904, by Seth S. Crocker, Crocker. Caricamento blow filler.

• Patent GB-190407468, applied in 1904, by Frank M. Kegrize, Kegrize. Alimentatore.

• Patent US-768216, applied in 1904, by August Eberstein, Boston Pen. Alimentatore.

• Patent US-768779, applied in 1903, by Harry W. Stone, A. A. Waterman. Caricamento rientrante.

• Patent US-769427, applied in 1904, by David W. Beaumel, Beaumel. Penna a stilo.

• Patent US-771360, applied in 1904, by August Eberstein, Boston Pen. Alimentatore.

• Patent US-772193, applied in 1903, by De Witt C. Van Valer, A. A. Waterman. Costruzione pennino.

• Patent US-772467, applied in 1903, by Rhodes G. Lockwood, Sterling Fountain Pen. Sistema di caricamento.

• Patent US-773371, applied in 1904, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent US-776428, applied in 1904, by Julius L. Schnell, Schnell, Bankers. Alimentatore.

• Patent US-776951, applied in 1904, by James Sinnot, Unbranded. Penna a serbatoio.

1905

• Patent US-778997, applied in 1904, by George S. Parker, The Parker Pen Company. Alimentatore spear-head.

• Patent US-780416, applied in 1904, by August Eberstein, Boston Pen. Caricamento rientrante.

• Patent US-781649, applied in 1904, by Robert H. Hamilton, Eclipse. Caricamento sleeve filler.

• Patent US-784528, applied in 1903, by Thomas P. Ambrose, Hicks. Caricamento sleeve filler.

• Patent US-785653, applied in 1904, by Claes W. Boman, Eagle. Sistema di caricamento.

• Patent US-785654, applied in 1904, by Claes W. Boman, Eagle. Sistema di caricamento.

• Patent US-787152, applied in 1904, by John T. Davison, Walker Davison, The Parker Pen Company. Caricamento a pulsante di fondo.

• Patent US-791466, applied in 1905, by Edward M. Heylman, The Parker Pen Company. Sistema di caricamento.

• Patent US-794329, applied in 1905, by William A. Whitehouse, Unbranded. Impugnatura per matita.

• Patent US-794814, applied in 1902, by William W. Sanford, Sanford and Bennet. Sistema di caricamento.

• Patent US-794836, applied in 1905, by Thomas P. Ambrose, Hicks. Caricamento sleeve filler.

• Patent US-795569, applied in 1904, by Thomas P. Ambrose, Hicks. Sistema caricamento.

• Patent US-799038, applied in 1904, by William F. Duryea, Salz. Fermaglio.

• Patent US-799297, applied in 1905, by Joseph F. Betzler, Laughlin. Sistema di caricamento.

• Patent US-799777, applied in 1905, by Roy Conklin, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-799897, applied in 1905, by William I. Ferris, Waterman. Caricamento sleeve filler.

• Patent US-800129, applied in 1905, by Robert W. Gorham, Good Pen Co. Caricamento sleeve filler.

• Patent US-800141, applied in 1905, by William I. Ferris, Waterman. Fermaglio Clip-Cap.

• Patent GB-190502671, applied in 1905, by Evelyn De La Rue, De La Rue - Onoto. Precursore siringa rovesciata.

• Patent US-802668, applied in 1904, by Huston Taylor, Aikin Lambert. Caricamento bulb filler.

• Patent GB-190428533, applied in 1904, by Benjamin William Warwick, Unbranded. Penna a stilo.

• Patent US-803866, applied in 1904, by William A. Welty, Welty. Alimentatore.

• Patent US-803927, applied in 1903, by Eduard Reisert, Klio-Werk. Penna rientrante.

• Patent US-804847, applied in 1905, by John A. Holland, John Holland Pen Company. Caricamento pull filler.

• Patent GB-190513768, applied in 1905, by George Sweetser, De La Rue - Onoto. Caricamento a siringa rovesciata.

• Patent FR-358289, applied in 1906, by George Sweetser, De La Rue - Onoto. Caricamento a siringa rovesciata.

• Patent US-807280, applied in 1905, by Frank M. Kegrize, Kegrize. Sistema di caricamento.

• Patent US-810284, applied in 1905, by Frank M. Kegrize, Kegrize. Alimentatore.

• Patent US-807500, applied in 1905, by William W. Sanford, Sanford and Bennet. Caricamento sleeve filler.

• Patent GB-190507113, applied in 1905, by Cecil Bristow, Swan. Tasca portapenna.

1906

• Patent US-813534, applied in 1905, by George Sweetser, De La Rue - Onoto. Caricamento a siringa rovesciata.

• Patent GB-190515547, applied in 1905, by Duncan Cameron, Cameron. Alimentatore.

• Patent US-814520, applied in 1905, by Roy Conklin, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-814805, applied in 1905, by Evelyn De La Rue, De La Rue - Onoto. Precursore siringa rovesciata.

• Patent US-816345, applied in 1905, by Rhodes G. Lockwood, Sterling Fountain Pen. Attrezzo per caricare stilografiche.

• Patent US-818803, applied in 1905, by Otto E. Weidlich, Weidlich. Sistema di caricamento.

• Patent GB-190603690, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent FR-360837, applied in 1905, Roeder. Pennino e alimentatore.

• Patent US-819719, applied in 1905, by Francis C. Brown, Caw's. Alimentatore.

• Patent US-821940, applied in 1906, by John A. Holland, John Holland Pen Company. Caricamento sleeve filler.

• Patent US-821993, applied in 1905, by Charles Dunn, Dunn. Gruppo pennino doppio.

• Patent US-824688, applied in 1904, by William I. Ferris, Waterman. Precursore del pennarello.

• Patent US-825153, applied in 1905, by Victor L. Ochoa, Unbranded. Pennino e alimentatore.

• Patent US-825442, applied in 1906, by Frederick William Bender, Unbranded. Sistema di caricamento.

• Patent US-826552, applied in 1905, by Charles Dunn, Dunn. Caricamento a siringa.

• Patent US-827004, applied in 1905, by Benjamin F. Flint, Unbranded. Sistema di caricamento.

• Patent US-827022, applied in 1905, by David B. Kaufmann, Unbranded. Sistema di caricamento.

• Patent FR-363394, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent GB-190524851, applied in 1905, by Evelyn De La Rue, De La Rue - Onoto. Penna a stilo.

• Patent US-828920, applied in 1905, by George F. Brandt, Boston Pen. Caricamento rientrante.

• Patent US-828973, applied in 1905, by William W. Sanford, Sanford and Bennet. Caricamento sleeve filler.

• Patent US-832981, applied in 1906, by William R. Kennedy, Unbranded. Cappuccio scorrevole.

• Patent GB-190601860, applied in 1906, by Cecil Bristow, Swan. Tasca portapenna.

• Patent DE-176702, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent GB-190616715, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent US-834541, applied in 1906, by William A. Welty, Welty. Alimentatore.

• Patent US-834542, applied in 1906, by William A. Welty, Welty. Sistema di caricamento.

• Patent US-836180, applied in 1906, by Roy Conklin, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-836905, applied in 1906, by John N. Whitehouse, Le-White Manufacturing Company. Costruzione corpo e cappuccio.

• Patent FR-06524E, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent DK-09144, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent US-839537, applied in 1906, by David W. Beaumel, Beaumel. Decorazione impugnatura.

1907

• Patent US-841475, applied in 1906, by Paul E. Wirt, Wirt. Caricamento a siringa.

• Patent CH-36513, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent US-844061, applied in 1906, by Levi D. Van Valenburg, Williamson's Safety Fountain Pen - Torino, Salz. Fermaglio a molla.

• Patent US-844575, applied in 1905, by John S. Barnes, Waterman. Alimentatore.

• Patent US-844576, applied in 1906, by John S. Barnes, Waterman. Alimentatore.

• Patent US-846547, applied in 1906, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent US-848023, applied in 1906, by M L Z Fuller, Unbranded. Caricamento a fisarmonica.

• Patent US-848620, applied in 1905, by John S. Barnes, Waterman. Alimentatore.

• Patent US-849110, applied in 1907, by Frederick Wm. Erickson, Unbranded. Caricamento a cartuccia.

• Patent DE-183242, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent US-851081, applied in 1905, by Charles A. Faber, Unbranded. Sistema di caricamento.

• Patent US-852368, applied in 1906, by Paul E. Wirt, Wirt. Sistema di caricamento.

• Patent US-852369, applied in 1906, by Paul E. Wirt, Wirt. Sistema di caricamento.

• Patent US-854584, applied in 1906, by Arnold Martinelli, The Parker Pen Company. Fermaglio a scomparsa.

• Patent US-856082, applied in 1907, by Morris W. Moore, Atlantis. Sistema di caricamento.

• Patent AT-31184, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent CH-37618, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent DK-09918, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent US-863029, applied in 1907, by John A. Holland, John Holland Pen Company. Fermaglio a molla.

• Patent FR-377047, applied in 1905, by Charles A. Faber, Unbranded. Sistema di caricamento.

• Patent FR-378822, applied in 1907, by Morris W. Moore, Atlantis. Sistema di caricamento.

• Patent FR-379615, applied in 1907, by Eugen Hahn, August Eberstein, Montblanc. Cappuccio di sicurezza.

• Patent GB-190704787, applied in 1907, by George Sweetser, De La Rue - Onoto. Caricamento a siringa rovesciata.

• Patent US-873769, applied in 1906, by James P. Morris, Unbranded. Caricamento a siringa.

• Patent US-874897, applied in 1907, by Morris W. Moore, Atlantis. Caricamento rientrante.

• Patent DE-193717, applied in 1907, by Eduard Penkala, Penkala. Stilografica a inchiostro solido.

• Patent AT-31185, applied in 1906, by Eduard Penkala, Penkala. Porta-mine.

• Patent GB-190708313, applied in 1907, by Duncan Cameron, Cameron. Pennino Waverley per stilografica.

1908

• Patent GB-127532, applied in 1919, by Osmond Blythe Wade, Unbranded. Fascicolatore.

• Patent US-879296, applied in 1907, by Frank H. Mooney, C. E. Barret & Company, Mooney. Caricamento sleeve filler.

• Patent US-880973, applied in 1907, by William L. Clarke, Unbranded. Accessorio per calamaio.

• Patent GB-190713900, applied in 1907, by Eugen Hahn, August Eberstein, Montblanc. Cappuccio di sicurezza.

• Patent US-883767, applied in 1907, by Albert Kasan Watts, Swan. Fermaglio.

• Patent US-885753, applied in 1907, by John A. Holland, John Holland Pen Company. Blocco afflusso inchiostro.

• Patent US-886095, applied in 1907, by Levi D. Van Valenburg, Williamson's Safety Fountain Pen - Torino, Salz. Fermaglio a molla.

• Patent GB-190719977, applied in 1907, by Cecil Bristow, Swan. Cappuccio reversibile a corpo della Longshort.

• Patent GB-190720065, applied in 1907, by Alexander Munro, Research Fountain Pen. Caricamento bulb filler.

• Patent FR-387824, applied in 1908, by Cecil Bristow, Swan. Cappuccio reversibile a corpo.

• Patent US-896576, applied in 1907, by George Rentz, Rentz Pen Company. Sistema di caricamento.

• Patent US-896861, applied in 1908, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Caricamento a levetta.

• Patent GB-190812001, applied in 1908, by Eduard Penkala, Penkala. Calamaio.

• Patent US-897892, applied in 1906, by Robert H. Hamilton, Eclipse. Caricamento per rientrante.

• Patent US-D039560, applied in 1908, by Henry Haymann, Eagle. Matita meccanica.

• Patent US-900833, applied in 1906, by Alonzo T. Cross, Cross. Alimentatore.

• Patent GB-190804024, applied in 1908, by Duncan Cameron, Cameron. Accessorio per caricamento.

• Patent US-901948, applied in 1907, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent FR-392740, applied in 1908, by Francis Charles Jarvis, Thomas Howard Garner, Conway Stewart. Sistema di caricamento.

• Patent US-907722, applied in 1908, by Claes W. Boman, Eagle. Penna rivestita in metallo.

• Patent GB-190814947, applied in 1908, by Edmund Moster, Mavro Moster, Penkala. Cappuccio protettivo per matite.

1909

• Patent US-908537, applied in 1907, by Francis R. Baker, Waterman. Fermaglio.

• Patent GB-190804840, applied in 1908, by Francis Charles Jarvis, Thomas Howard Garner, Conway Stewart. Caricamento penna a stilo.

• Patent GB-190809818, applied in 1908, by Duncan Cameron, Cameron. Alimentazione per pennino Waverley.

• Patent US-910980, applied in 1908, by Edward V. Whiton, Williamson's Safety Fountain Pen - Torino. Alimentatore.

• Patent FR-395110, applied in 1908, by Paul E. Wirt, Wirt. Cappuccio di sicurezza.

• Patent FR-395879, applied in 1908, by Edmund Moster, Mavro Moster, Penkala. Cappuccio protettivo per matite.

• Patent US-916513, applied in 1908, by William A. Welty, Welty. Sistema di caricamento.

• Patent FR-396527, applied in 1908, by Duncan Cameron, Cameron. Pennino Waverley.

• Patent US-919244, applied in 1907, by Jay G. Rider, Perfection. Fermaglio.

• Patent AT-36998, applied in 1908, by Eduard Penkala, Penkala. Calamaio.

• Patent US-926611, applied in 1908, by Evelyn De La Rue, De La Rue - Onoto. Sistema di caricamento.

• Patent GB-190909893, applied in 1908, by William A. Welty, Welty. Sistema di caricamento.

• Patent GB-190902001, applied in 1909, by William I. Ferris, Waterman. Caricamento pump filler.

• Patent GB-190828493, applied in 1907, by Duncan Cameron, Cameron. Pennino Waverley per stilografica.

• Patent GB-190823642, applied in 1908, by Duncan Cameron, Albert Edward Wright, Cameron. Alimentatore.

• Patent AT-38995, applied in 1908, by Edmund Moster, Mavro Moster, Penkala. Cappuccio protettivo per matite.

• Patent FR-402317, applied in 1909, by William F. Cushman, Moore Pen Company. Sistema compensazione.

• Patent GB-190821631, applied in 1908, by Alexander Munro, Research Fountain Pen. Alimentazione per penna a serbatoio.

• Patent US-939057, applied in 1908, by Morris W. Moore, SaWaCo. Caricamento rientrante.

• Patent GB-190918450, applied in 1909, by Francis Charles Jarvis, Thomas Howard Garner, Conway Stewart. Penna a stilo.

• Patent US-940247, applied in 1908, by John C. Haring, Swan. Matita meccanica.

• Patent US-940509, applied in 1908, by Duncan Cameron, Cameron. Pennino Waverley.

• Patent US-941466, applied in 1909, by William W. Sanford, Sanford and Bennet. Penna a stilo.

• Patent CH-45651, applied in 1908, by Edmund Moster, Mavro Moster, Penkala. Cappuccio protettivo per matite.

1910

• Patent US-949752, applied in 1908, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent US-950817, applied in 1909, by William I. Ferris, Waterman. Caricamento sleeve filler.

• Patent US-950939, applied in 1908, by Clarence E. Martling, Charles Dunn, Dunn. Cappuccio a tenuta.

• Patent GB-190905849, applied in 1909, by Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent US-952469, applied in 1909, by William W. Sanford, Sanford and Bennet. Accomodation clip.

• Patent US-953316, applied in 1909, by Francis C. Brown, Caw's. Caricamento rientrante.

• Patent FR-408830, applied in 1909, by William F. Cushman, Moore Pen Company. Caricamento rientrante.

• Patent US-954415, applied in 1909, by Claes W. Boman, Eagle. Caricamento rientrante.

• Patent US-955205, applied in 1910, by Felix Riesenberg, Unbranded. Visualizzatore livello inchiostro.

• Patent US-955475, applied in 1909, by Bert Rentz, Rentz Pen Company. Sistema di caricamento.

• Patent US-955517, applied in 1909, by Joseph Warren Kessel, Waterman. Fermaglio rivettato.

• Patent US-956895, applied in 1909, by Benjamin Grieshaber, Grieshaber. Caricamento bump filler.

• Patent GB-190916587, applied in 1909, by Alexander Munro, Research Fountain Pen. Sistemi di alimentazione per caricamenti a sfiatatoio.

• Patent US-960413, applied in 1909, by William W. Sanford, Sanford and Bennet. Sistema di caricamento.

• Patent FR-411575, applied in 1909, by Francis Charles Jarvis, Thomas Howard Garner, Conway Stewart. Penna a stilo.

• Patent FR-413467, applied in 1909, by Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent US-969198, applied in 1909, by William W. Sanford, Sanford and Bennet. Cappuccio a tenuta.

• Patent US-972301, applied in 1909, by Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent GB-190929406, applied in 1909, by Herbert Gornell, Lang - Curzon - Summit. Caricamento a siringa.

• Patent US-976815, applied in 1909, by Joseph Lipic, Lipic Pen Co.. Sistema di caricamento.

• Patent US-978419, applied in 1908, by Paul E. Wirt, Wirt. Cappuccio di sicurezza.

• Patent US-978420, applied in 1908, by Paul E. Wirt, Wirt. Alimentatore.

• Patent US-979606, applied in 1910, by Jacob Ullrich, Unbranded. Penna a stilo.

• Patent FR-419199, applied in 1910, Mallat. Penna stilografica.

1911

• Patent GB-191007952, applied in 1910, by Ryosuke Namiki, Pilot. Tiralinee a serbatoio.

• Patent US-982922, applied in 1909, by Frank M. Ashley, Wahl Eversharp. Sistema di caricamento.

• Patent US-984116, applied in 1910, by Francis W. Vaughn Jr., Moore Pen Company, Vaughn-Upton. Sistema di caricamento.

• Patent GB-191100218, applied in 1910, by Felix Riesenberg, Unbranded. Visualizzatore livello inchiostro.

• Patent GB-191007239, applied in 1910, by Harry C. Johnson, Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent FR-422654, applied in 1910, by Harry C. Johnson, Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent US-990288, applied in 1910, by George S. Parker, The Parker Pen Company. Alimentatore Lucky Curve perfezionato (spear-head).

• Patent FR-423826, applied in 1910, by Edmund Moster, Mavro Moster, Penkala. Cannuccia per pennini.

• Patent US-992234, applied in 1910, by Ryosuke Namiki, Pilot. Tiralinee a serbatoio.

• Patent GB-191101051, applied in 1911, by Edmund Moster, Mavro Moster, Penkala. Cannuccia per pennini.

• Patent US-999648, applied in 1911, by William A. Houston, Houston Fountain Pen. Alimentatore.

• Patent FR-427646, applied in 1910, by Harry C. Johnson, Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent GB-191026585, applied in 1910, by Alexander Munro, Research Fountain Pen. Penna a china da disegno tecnico.

• Patent DE-238294, applied in 1911, by Nicolaus Assmann, Unbranded. Tiralinee alimentato.

• Patent GB-191103257, applied in 1911, by Levi D. Van Valenburg, Unbranded. Fermaglio a molla.

• Patent US-1005387, applied in 1911, by Ruel W. Whitney, Whitney-Richards. Caricamento a levetta.

• Patent US-1007619, applied in 1910, by Joseph A. Vogelmann, Unbranded. Sistema di caricamento.

• Patent FR-431385, applied in 1911, Matador. Caricamento rientrante.

• Patent GB-191116434, applied in 1910, by Francis W. Vaughn Jr., Moore Pen Company, Vaughn-Upton. Sistema di caricamento.

1912

• Patent US-1016166, applied in 1911, by Marius Marcucci, A. A. Waterman. Montaggio fermaglio.

• Patent US-1019930, applied in 1911, by Francis W. Vaughn Jr., Henry J. Upton, Vaughn-Upton. Caricamento sleeve filler.

• Patent US-1020221, applied in 1911, by Joseph Rauchenecker, Unbranded. Penna doppia.

• Patent GB-191125073, applied in 1911, by Alfred Farmer, De La Rue - Onoto. Caricamento rientrante.

• Patent US-1028382, applied in 1909, by George S. Parker, The Parker Pen Company. Cappuccio a tenuta.

• Patent DE-248718, applied in 1911, by Jacob Kaufmann, Unbranded. Caricamento a cartuccia.

• Patent US-1031282, applied in 1910, by Morris W. Moore, SaWaCo. Meccanismo rientrante.

• Patent DE-249042, applied in 1911, by Ferdinand Gizman, Fritz Gizman, Unbranded. Penna a stilo.

• Patent FR-15507E, applied in 1910, by Edmund Moster, Mavro Moster, Penkala. Cannuccia per pennini.

• Patent GB-191116979, applied in 1911, by Harry C. Johnson, Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent GB-191210727, applied in 1912, by Mavro Moster et al, Penkala. Cannuccia per pennini.

• Patent GB-191203230, applied in 1912, by Cecil Bristow, Swan. Penna a stilo.

• Patent US-1035665, applied in 1911, by Francis W. Vaughn Jr., Henry J. Upton, Vaughn-Upton. Cappuccio a tenuta.

• Patent GB-191126950, applied in 1911, by Cecil Bristow, Swan. Cappuccio.

• Patent US-1036149, applied in 1910, by George Rentz, Rentz Pen Company. Sistema di caricamento.

• Patent US-1037660, applied in 1912, by Felix Riesenberg, Unbranded. Sistema di caricamento.

• Patent GB-191218716, applied in 1912, by Felix Riesenberg, Unbranded. Sistema di caricamento.

• Patent US-1038068, applied in 1912, by George F. Barrett, Unbranded. Caricamento sleeve filler.

• Patent US-1042695, applied in 1912, by James W. Laughlin, Laughlin. Caricamento sleeve filler.

• Patent US-1042804, applied in 1912, by James W. Laughlin, Laughlin. Caricamento sleeve filler.

• Patent AT-56132B, applied in 1910, by Edmund Moster, Mavro Moster, Penkala. Cannuccia per pennini.

• Patent GB-191129078, applied in 1912, by August Eberstein, Ernest M. Wade, Lang - Curzon - Summit. Alimentatore.

• Patent FR-446037, applied in 1912, Klio-Werk. Sistema per una rientrante.

• Patent US-1046660, applied in 1912, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Aggancio barra di pressione.

• Patent US-1046821, applied in 1912, by William L. MacDonald, Moore Pen Company. Alimentatore.

1913

• Patent US-1049465, applied in 1912, by William F. Duryea, Salz. Sistema di caricamento.

• Patent DE-255378, applied in 1912, Klio-Werk. Sistema per una rientrante.

• Patent US-1050295, applied in 1910, by Felix Riesenberg, Unbranded. Visualizzatore livello inchiostro.

• Patent US-1051670, applied in 1912, by Claes W. Boman, Eagle. Caricamento sleeve filler.

• Patent US-1051671, applied in 1912, by Claes W. Boman, Eagle. Impugnatura sezione.

• Patent GB-191211730, applied in 1912, by Ernest M. Wade, Lang - Curzon - Summit. Penna a stilo.

• Patent US-1053879, applied in 1911, by Julius L. Schnell, Schnell. Sistema di caricamento.

• Patent GB-191211520, applied in 1912, by Ernest M. Wade, Lang - Curzon - Summit. Terminazioni corpo e cappuccio.

• Patent US-1059398, applied in 1912, by Philip J. Schreiber, Unbranded. Penna a fusto estraibile.

• Patent US-1060137, applied in 1912, by Julius L. Schnell, Schnell. Sistema di caricamento.

• Patent GB-191309185, applied in 1912, Klio-Werk. Sistema per una rientrante.

• Patent US-1064098, applied in 1912, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Fermaglio.

• Patent GB-191219773, applied in 1912, by Alfred Farmer, De La Rue - Onoto. Alimentatore rientrante.

• Patent FR-453717, applied in 1913, by Etienne Forbin, Bayard. Caricamento rientrante.

• Patent US-1066115, applied in 1911, by Frank Amos Jhonson, Waterman. Macchina per firme multiple.

• Patent FR-455028, applied in 1912, De La Rue - Onoto. Alimentatore rientrante.

• Patent GB-191310028, applied in 1913, by Albert David Fleishmann, Osmond Blythe Wade, Lang - Curzon - Summit. Sistema di caricamento.

• Patent GB-191303456, applied in 1913, by Harry Alphonse Widmer, Widmers Ltd Manufacturers. Pennino a larghezza variabile.

• Patent GB-191220490, applied in 1912, by Ernest M. Wade, Lang - Curzon - Summit. Penna a stilo.

• Patent US-1070496, applied in 1910, by Leopold Da Costa Levy, Unbranded. Portamatite con calendario.

• Patent US-1071538, applied in 1911, by Francis W. Vaughn Jr., Vaughn-Upton. Cappuccio a tenuta.

• Patent US-1072073, applied in 1912, by George F. Brandt, Boston Pen. Caricamento pull filler.

• Patent DE-264883, applied in 1912, by Felix Riesemberg, Unbranded. Sistema di caricamento.

• Patent DE-264882, applied in 1912, Klio-Werk. Penna a serbatoio.

• Patent DE-265018, applied in 1912, by Justin Gilbert, Unbranded. Sistema di caricamento.

• Patent US-1075631, applied in 1912, by Harry B. Dods, Diamond Point Pen Company. Cappuccio a tenuta.

• Patent US-1075815, applied in 1912, by William L. Chapman, A. A. Waterman. Montaggio fermaglio.

• Patent US-1078513, applied in 1911, by George S. Parker, The Parker Pen Company. Caricamento sleeve filler.

• Patent US-1079228, applied in 1913, by Alfred Farmer, De La Rue - Onoto. Sistema anti-perdite.

• Patent US-1080099, applied in 1912, by William L. Chapman, A. A. Waterman. Valvola di blocco.

• Patent US-1080176, applied in 1912, by Richard H. Stevens, Waterman. Meccanismo di compensazione.

• Patent US-1080197, applied in 1911, by Joseph G. Coffin, Moore Pen Company. Caricamento rientrante.

• Patent US-1080347, applied in 1912, by Frank Amos Jhonson, Waterman. Macchina per firme multiple.

• Patent US-1081557, applied in 1913, by William W. Sanford, Sanford and Bennet. Alimentatore.

• Patent DE-268612, applied in 1913, by Hugo Stein, Unbranded. Caricamento a sfiatatoio.

1914

• Patent FR-462292, applied in 1912, by Ernest M. Wade, Lang - Curzon - Summit. Penna a stilo.

• Patent US-1085174, applied in 1913, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Montaggio fermaglio.

• Patent US-1085714, applied in 1913, Inkograph. Penna a stilo.

• Patent DE-269883, applied in 1913, Soennecken. Caricamento rientrante.

• Patent AT-63461B, applied in 1910, by Edmund Moster, Mavro Moster, Penkala. Cannuccia per pennini.

• Patent FR-18258E, applied in 1911, Matador. Caricamento rientrante.

• Patent DE-273638, applied in 1913, by Cark Shicktanz, Unbranded. Penna a stilo.

• Patent GB-191322823, applied in 1913, by Alfred Soennecken, Soennecken. Caricamento rientrante.

• Patent US-1098719, applied in 1912, by James W. Greenbaum, Boston Pen, Wahl Eversharp. Fermaglio "Roller Clip".

• Patent GB-191316916, applied in 1909, by Herbert Gornell, Osmond Blythe Wade, Lang - Curzon - Summit. Penna a stilo.

• Patent AT-65330B, applied in 1913, by Edmund Moster, Penkala. Tampone.

• Patent US-1103349, applied in 1913, by William L. Chapman, A. A. Waterman. Caricamento a siringa.

• Patent US-1104567, applied in 1906, by Ruther W. Springer, Unbranded. Penna stilografica.

• Patent CH-66146, applied in 1913, by Alfred Soennecken, Soennecken. Fondello rientrante.

• Patent US-1111469, applied in 1914, by George M. Kracker, Kraker. Fermaglio.

• Patent US-1111501, applied in 1914, by Albert Scheible, Kraker. Fermaglio.

• Patent US-1112362, applied in 1911, by Dewitt C. Demarest, Eagle. Penna a stilo.

• Patent GB-191330070, applied in 1913, by Cecil Bristow, Swan. Matita meccanica.

• Patent GB-191400948, applied in 1914, by Cecil Bristow, Swan. Blocco afflusso inchiostro.

• Patent US-1114052, applied in 1912, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Caricamento a levetta.

• Patent US-1116078, applied in 1912, by Adolf Klein, James W. Greenbaum, Boston Pen, Wahl Eversharp. Fermaglio "Roller Clip".

• Patent US-1118240, applied in 1913, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Caricamento a levetta.

• Patent US-1122559, applied in 1913, by Ernest M. Wade, Lang - Curzon - Summit. Rientrante a stilo.

1915

• Patent US-1124454, applied in 1912, by Harry C. Johnson, Ernest M. Wade, Lang - Curzon - Summit. Caricamento a siringa.

• Patent US-1124592, applied in 1913, by Henry R. Coit, Coit Ready Fill Pen Company. Caricamento sleeve filler.

• Patent US-1124750, applied in 1914, by Joseph A. Kracker, Kraker. Caricamento a levetta.

• Patent FR-473733, applied in 1914, Klio-Werk. Sistema per una rientrante.

• Patent US-1130741, applied in 1913, by Charles R. Keeran, Wahl Eversharp. Matita meccanica.

• Patent US-1134936, applied in 1914, by Julius Abegg, Chilton. Precursore del caricamento pneumatico.

• Patent CH-68675, applied in 1914, Klio-Werk. Sistema per una rientrante.

• Patent US-1143525, applied in 1914, by William I. Ferris, Waterman. Tappo boccetta inchiostro.

• Patent US-1144436, applied in 1914, by Julius L. Schnell, Schnell, Bankers. Sistema di caricamento.

• Patent US-D047595, applied in 1915, by Otto Huber, Eagle. Fermaglio di comodo.

• Patent US-D047643, applied in 1915, by Edwinc J. Dukes, Aikin Lambert. Matita meccanica.

• Patent GB-191412837, applied in 1914, Klio-Werk. Sistema per una rientrante.

• Patent US-1151016, applied in 1914, by Charles R. Keeran, Wahl Eversharp. Matita meccanica.

• Patent US-1151980, applied in 1912, by De Witt C. Van Valer, A. A. Waterman. Alimentatore.

• Patent US-1152509, applied in 1914, by John A. Holland, John Holland Pen Company. Caricamento a levetta.

• Patent AT-69881, applied in 1913, Soennecken. Caricamento rientrante.

• Patent US-1153754, applied in 1915, by Claes W. Boman, Eagle. Montaggio clip.

• Patent US-1154498, applied in 1915, by William I. Ferris, Waterman. Lavorazione pennino.

• Patent US-1156748, applied in 1915, by Edwin F. Britten, Waterman. Caricamento a levetta.

• Patent GB-191502959, applied in 1915, by Ernest M. Wade, Lang - Curzon - Summit. Sistema di caricamento.

• Patent GB-191508198, applied in 1914, by George M. Kracker, Kraker. Fermaglio.

• Patent GB-191505790, applied in 1914, by William I. Ferris, Edwin F. Britten, Waterman. Caricamento a levetta.

• Patent US-1164654, applied in 1914, by George M. Kracker, Kraker. Sistema di caricamento.

1916

• Patent GB-191507408, applied in 1915, by Cecil Bristow, Swan. Caricamento a levetta.

• Patent US-1169603, applied in 1911, by David W. Beaumel, Beaumel. Caricamento sleeve filler.

• Patent US-1170825, applied in 1914, by Joseph A. Kracker, Kraker. Caricamento a levetta.

• Patent FR-479060, applied in 1915, by Julius L. Schnell, Schnell, Bankers. Sistema di caricamento.

• Patent US-1171624, applied in 1915, by Frank H. Mooney, Conklin Pen Manufacturing Co.. Montaggio fermaglio.

• Patent US-1172342, applied in 1915, by Andrew O. Burgess, Unbranded. Pennino doppio.

• Patent GB-191506570, applied in 1915, by Alexander Munro, Research Fountain Pen. Sistema di blocco del flusso.

• Patent US-1176529, applied in 1915, by William I. Ferris, Waterman. Caricamento a levetta.

• Patent DE-290998, applied in 1914, Klio-Werk. Sistema per una rientrante.

• Patent US-1180424, applied in 1915, by Edward G. Peck, A. A. Waterman. Sistema di caricamento.

• Patent US-1180946, applied in 1915, by Felix Riesenberg, Waterman. Caricamento a levetta.

• Patent US-1181574, applied in 1913, by Seth S. Crocker, Crocker. Caricamento blow filler.

• Patent FR-480426, applied in 1915, by Edwin F. Britten, Waterman. Caricamento a levetta.

• Patent US-1194510, applied in 1914, by George M. Kracker, Kraker. Caricamento a levetta.

• Patent US-1195709, applied in 1916, by Lucifer J. Most, Unbranded. Caricamento a levetta.

• Patent GB-101241, applied in 1916, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent US-1197224, applied in 1916, by William E. Moore, The Parker Pen Company. Fermaglio con montaggio ad anello.

• Patent US-1197360, applied in 1914, by William I. Ferris, Edwin F. Britten, Waterman. Caricamento a levetta.

• Patent US-1198994, applied in 1916, by Claes W. Boman, Eagle. Sistema di caricamento.

• Patent US-1199993, applied in 1914, by George M. Kracker, Kraker. Caricamento a levetta.

• Patent DE-294495, applied in 1915, Kaweco. Caricamento pneumatico.

• Patent US-D049743, applied in 1916, by Charles R. Keeran, Wahl Eversharp. Fermaglio.

• Patent GB-191516665, applied in 1915, by Cecil Bristow, Swan. Sistema di caricamento.

• Patent US-1201951, applied in 1914, by William I. Ferris, Waterman. Alimentatore.

• Patent GB-101895, applied in 1916, by Cecil Bristow, Swan. Alimentatore.

• Patent US-1205847, applied in 1916, by Claes W. Boman, Eagle. Caricamento a levetta.

• Patent US-1208653, applied in 1914, by Karl Räuchle, Albert Koehler, Klio-Werk. Sistema per una rientrante.

• Patent US-1209978, applied in 1916, by David J. La France, Carter's Ink Company, Boston Pen. Caricamento a levetta.

1917

• Patent US-1212297, applied in 1916, by William A. Welty, Welty. Sistema di caricamento.

• Patent US-1212744, applied in 1916, by Seth S. Crocker, Crocker. Sistema di caricamento.

• Patent US-1213725, applied in 1916, by Claes W. Boman, Eagle. Caricamento spoon filler.

• Patent US-1214310, applied in 1916, by Stormont Josselyn, Crocker. Precursore dell'hatchet filler.

• Patent US-1216732, applied in 1916, by James M. Reed, Eagle. Caricamento spoon filler.

• Patent US-1220875, applied in 1914, by Morris W. Moore, SaWaCo. Cappuccio di sicurezza.

• Patent GB-104980, applied in 1916, by William I. Ferris, Waterman. Alimentatore.

• Patent GB-100592, applied in 1915, Penkala. Matita meccanica.

• Patent US-1228177, applied in 1915, by Edwin F. Britten, Waterman. Caricamento a levetta.

• Patent FR-483349, applied in 1916, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent US-1236069, applied in 1916, by William F. Duryea, Salz. Matita meccanica.

• Patent US-1237619, applied in 1914, by Harvey Green Craig, Kraker. Sezione.

• Patent US-1238657, applied in 1917, by Marx Finstone, Eclipse. Caricamento a levetta.

• Patent US-1242323, applied in 1914, by Harvey G. Craig, Kraker. Caricamento a levetta.

• Patent US-1243383, applied in 1915, by Cecil Bristow, Swan. Barra di pressione.

• Patent GB-110270, applied in 1917, by William Livsey, Lang - Curzon - Summit. Meccanismo per safety.

• Patent US-1246232, applied in 1914, by William L. Chapman, A. A. Waterman. Sistema di caricamento.

• Patent US-1247037, applied in 1916, by Henry J. Upton, Vaughn-Upton. Caricamento a levetta.

• Patent US-1247169, applied in 1917, by Frederic E. Storer, Sterling Fountain Pen. Caricamento sleeve filler.

• Patent US-RE14397, applied in 1917, by Stormont Josselyn, Crocker. Caricamento hatchet filler.

• Patent US-1249501, applied in 1916, by Felix Riesenberg, Swan. Sistema di caricamento.

• Patent US-1250533, applied in 1917, by Levi D. Van Valenburg, Unbranded. Fermaglio a molla.

• Patent US-1251421, applied in 1915, by Felix Riesenberg, Swan. Sistema di caricamento.

1918

• Patent GB-113082, applied in 1916, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent US-1258458, applied in 1917, by Hans P. Ravn, Welty. Caricamento a levetta.

• Patent US-1260165, applied in 1916, by William F. Duryea, Salz. Caricamento a levetta.

• Patent US-1261481, applied in 1917, by George F. Brandt, Moore Pen Company. Caricamento a levetta.

• Patent US-1262438, applied in 1918, by Claes W. Boman, Eagle. Caricamento tipo spoon filler.

• Patent US-1263260, applied in 1918, by Rudolph Wm. Lotz, Kraker. Caricamento a levetta.

• Patent US-1263261, applied in 1918, by Rudolph Wm. Lotz, Kraker. Caricamento a levetta.

• Patent GB-114801, applied in 1918, by John James, Unbranded. Dispositivo di raddrizzamento del pennino.

• Patent US-1263808, applied in 1918, by Jacob Salz, Salz. Caricamento a levetta.

• Patent US-1264684, applied in 1915, by Jay G. Rider, Perfection. Sistema di caricamento.

• Patent US-1266141, applied in 1916, by Frank H. Mooney, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-1267288, applied in 1916, by Tagiro Tanimura, Swan. Sistema di caricamento.

• Patent US-RE14474, applied in 1918, by Felix Riesenberg, Swan. Sistema di caricamento.

• Patent US-1267575, applied in 1917, by Frank H. Mooney, Conklin Pen Manufacturing Co.. Fermaglio a molla.

• Patent US-1267624, applied in 1917, by George F. Brandt, Moore Pen Company. Alimentatore.

• Patent US-1268206, applied in 1917, by Martin Borbeck, General Manufactoring Co., Houston Fountain Pen. Sistema di caricamento.

• Patent US-1287556, applied in 1916, by Edward G. Woody, Unbranded. Sistema di caricamento.

• Patent US-1272697, applied in 1915, by Frank H. Mooney, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-1365131, applied in 1918, by Henry J. Upton, Moore Pen Company. Caricamento Non-Leakable.

• Patent US-1277613, applied in 1917, by William Livsey, Lang - Curzon - Summit. Meccanismo rientrante.

• Patent US-1277848, applied in 1918, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent US-1279186, applied in 1917, by John C. Wahl, William H. Odlum, Wahl Eversharp. Fermaglio per matita meccanica.

• Patent US-1279821, applied in 1918, by Clements L. Argon, Unbranded. Sistema di caricamento.

• Patent US-1281194, applied in 1915, by Frank H. Mooney, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-1283860, applied in 1918, by Oliver Mitchell, Moore Pen Company. Cappuccio e fermaglio.

• Patent US-1284156, applied in 1917, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-1284525, applied in 1914, by Russell T. Wing, The Parker Pen Company. Alimentatore.

• Patent US-1284718, applied in 1918, by Henry Lasko, Eagle. Montaggio fermaglio.

• Patent US-1288819, applied in 1918, by George F. Brandt, Moore Pen Company. Caricamento a levetta.

• Patent US-1289921, applied in 1917, by Sydney M. Rowe, Unbranded. Sistema di caricamento.

1919

• Patent US-1290365, applied in 1918, by Ferdinand Scheiblecker, Salz. Caricamento a levetta.

• Patent US-1292736, applied in 1916, by August G. Elser, C. E. Barret & Company. Caricamento a levetta.

• Patent US-1299642, applied in 1918, by William A. Welty, Hans P. Ravn, Welty. Caricamento a levetta.

• Patent US-1300849, applied in 1918, by David J. La France, William P. De Witt, De Witt-La France. Blocco afflusso inchiostro.

• Patent US-1301057, applied in 1918, by Charles R. Keeran, Wahl Eversharp. Corpo in metallo.

• Patent US-1301317, applied in 1918, by Lillian Plancher, Eclipse. Sistema di caricamento.

• Patent US-1301341, applied in 1918, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent GB-125906, applied in 1918, by Osmond Blythe Wade, Lang - Curzon - Summit. Rientrante.

• Patent US-1302783, applied in 1918, by Harold B. Fowler, Welty. Macchina lavorazione fusti.

• Patent US-1302935, applied in 1918, by Frank Le Boeuf, LeBoeuf. Penna in celluloide.

• Patent FR-490999, applied in 1918, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-1304739, applied in 1919, by Herbert L. Carman, Swan. Caricamento a levetta.

• Patent FR-491375, applied in 1917, Conklin Pen Manufacturing Co.. Fermaglio a molla.

• Patent GB-127532, applied in 1919, by Osmond Blythe Wade, Lang - Curzon - Summit. Sistema di caricamento.

• Patent GB-128009, applied in 1917, Conklin Pen Manufacturing Co.. Fermaglio a molla.

• Patent US-1307630, applied in 1916, by William A. Haskins, Unbranded. Caricamento sleeve filler.

• Patent US-1312681, applied in 1917, by William L. Chapman, A. A. Waterman. Caricamento a levetta.

• Patent GB-129115, applied in 1918, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent US-1310235, applied in 1918, by William T. Fitzpatrick, Welty. Montaggio fermaglio.

• Patent FR-20859E, applied in 1916, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent US-1313056, applied in 1918, by Oswald H. Blackwood, Fred Pearson, Unbranded. Stilografica a doppio serbatoio.

• Patent GB-118118, applied in 1916, by Felix Riesenberg, Swan. Sistema di caricamento.

• Patent US-1315373, applied in 1918, by Charles A. Luck, Conklin Pen Manufacturing Co.. Montaggio gruppo pennino.

• Patent US-1317472, applied in 1917, by Frank M. Ashley, Wahl Eversharp. Sistema di caricamento.

• Patent US-1317817, applied in 1919, by Robert S. Ogilvy, Unbranded. Sistema di caricamento.

• Patent DK-25155C, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent US-1320393, applied in 1918, by Edmund M. Houston, William A. Houston, Houston Fountain Pen. Sistema di caricamento.

• Patent US-1321188, applied in 1919, by Homer Catucci, Swan. Caricamento a levetta.

• Patent FR-496693, applied in 1919, by Charles R. Keeran, Wahl Eversharp. Corpo in metallo.

• Patent CH-81788, applied in 1918, by Hermann Burkhardt, Unbranded. Penna a stilo.

• Patent DK-25360C, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent FR-497658, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent US-1325844, applied in 1917, by Hugo S. Hasselquist, Wahl Eversharp. Caricamento a levetta.

• Patent GB-127562, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent US-1326206, applied in 1919, by Charles A. Luck, Conklin Pen Manufacturing Co.. Cappuccio in metallo.

1920

• Patent FR-498271, applied in 1918, by Osmond Blythe Wade, Lang - Curzon - Summit. Rientrante.

• Patent FR-498272, applied in 1919, by Osmond Blythe Wade, Lang - Curzon - Summit. Rientrante.

• Patent US-1328215, applied in 1918, by De Witt C. Van Valer, A. A. Waterman. Caricamento a levetta.

• Patent US-1334332, applied in 1918, by Hugo S. Hasselquist et al, Wahl Eversharp. Fermaglio matita meccanica.

• Patent US-1335580, applied in 1917, by John E. Hayes, Byers & Hayes. Costruzione del pennino.

• Patent US-1336119, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent US-1336572, applied in 1919, by Charles A. Luck, Conklin Pen Manufacturing Co.. Rivestimento in metallo.

• Patent US-1339359, applied in 1918, by John Kritikson, Security Pen Corporation. Fermaglio a molla.

• Patent US-1340277, applied in 1918, by David J. La France, William P. De Witt, De Witt-La France. Blocco afflusso inchiostro.

• Patent US-1342736, applied in 1918, by Martin Borbeck, Houston Fountain Pen. Sistema di caricamento.

• Patent FR-503751, applied in 1918, Mallat. Sistema di caricamento.

• Patent US-1344434, applied in 1918, by Robert George Crombie Boa, Wahl Eversharp. Supporto gomma matita meccanica.

• Patent US-D055515, applied in 1920, by William A. Houston, Houston Fountain Pen. Spillatura per catenella.

• Patent US-1346045, applied in 1919, by William E. Moore, The Parker Pen Company. Caricamento a pulsante di fondo.

• Patent GB-146632, applied in 1919, by Alice Edna Wade, Lang - Curzon - Summit. Meccanismo per rientrante.

• Patent US-1347800, applied in 1917, by Paul E. Wirt, Wirt. Caricamento a levetta.

• Patent US-1347901, applied in 1919, by William T. Fitzpatrick, Welty. Alimentatore.

• Patent US-1348211, applied in 1919, by Alonzo T. Cross, Cross. Bottiglia dispensatrice inchiostro.

• Patent US-1349025, applied in 1919, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent FR-505917, applied in 1919, by Paul-Leonide Baudry, Unbranded. Fermaglio di sicurezza.

• Patent US-1350412, applied in 1918, by David J. La France, William P. De Witt, De Witt-La France. Fermaglio a molla.

• Patent US-1351552, applied in 1917, by John Bricken, Wahl Eversharp. Matita meccanica.

• Patent US-1351564, applied in 1919, by Wilfred E. Gerry, Wahl Eversharp. Schema di tabella di pennini Tempoint.

• Patent US-1351574, applied in 1917, by Charles R. Keeran, Wahl Eversharp. Caricamento a levetta.

• Patent US-1351575, applied in 1917, by Charles R. Keeran, Wahl Eversharp. Caricamento tipo stantuffo tuffante.

• Patent US-1351591, applied in 1917, by John C. Wahl, Wahl Eversharp. Caricamento a levetta.

• Patent DE-326796, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent GB-151753, applied in 1919, by George Davies, Wyvern Fountain Pen Company. Caricamento a levetta.

• Patent GB-151844, applied in 1919, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent FR-526081, applied in 1919, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent AT-81466B, applied in 1918, by Jörgen Thorvald Andersen, Unbranded. Caricamento a capillarità.

• Patent US-1357083, applied in 1916, by Julius L. Schnell, Schnell. Alimentatore.

• Patent IT-174083, applied in 2024, Iris. Caricamento tipo safety con blocco del pennino e rientro a molla..

• Patent US-1358511, applied in 1920, by Claes W. Boman, Eagle. Montaggio fermaglio.

• Patent US-1359880, applied in 1917, by Charles Dunn, Dunn. Caricamento tipo stantuffo tuffante.

• Patent US-D056681, applied in 1918, by John C. Wahl, Wahl Eversharp. Motivo per guilloché.

• Patent GB-141075, applied in 1919, Mallat. Sistema di caricamento.

• Patent US-1360647, applied in 1919, by Charles R. Keeran, Autopoint. Corpo penna in metallo.

• Patent GB-141071, applied in 1918, Mallat. Sistema di caricamento.

1921

• Patent US-1365131, applied in 1920, by Henry J. Upton, Moore Pen Company. Cappuccio di sicurezza.

• Patent US-1365463, applied in 1920, by Arthur O. Dahlberg, The Parker Pen Company. Visualizzatore livello inchiostro.

• Patent US-1365754, applied in 1918, by John C. Wahl, Wahl Eversharp. Caricamento a levetta.

• Patent US-1367255, applied in 1917, by Hugo S. Hasselquist, Wahl Eversharp. Caricamento a levetta.

• Patent FR-512990, applied in 1915, Penkala. Matita meccanica.

• Patent FR-513181, applied in 1919, Mallat. Calamaio.

• Patent GB-159119, applied in 1919, by Alice Edna Wade, Lang - Curzon - Summit. Meccanismo per rientrante.

• Patent GB-149315, applied in 1919, Mallat. Sistema di caricamento.

• Patent FR-513549, applied in 1919, by Alice Edna Wade, Lang - Curzon - Summit. Meccanismo per rientrante.

• Patent GB-146930, applied in 1919, Mallat. Sistema di caricamento.

• Patent FR-513812, applied in 1919, Paillard. Matite.

• Patent US-D057403, applied in 1920, by John C. Wahl, Wahl Eversharp. Motivo per guilloché.

• Patent US-D057404, applied in 1920, by John C. Wahl, Wahl Eversharp. Motivo per guilloché.

• Patent US-D057405, applied in 1920, by John C. Wahl, Wahl Eversharp. Motivo per decorazione di laminate.

• Patent US-1372011, applied in 1918, by John L. De Maria, Security Pen Corporation. Blocco di sicurezza per caricamento.

• Patent US-1372608, applied in 1920, Unbranded. Sistema di visualizzazione del livello di inchiostro.

• Patent US-D058001, applied in 1920, by Edward Todd Jr., Swan. Decorazione fusto.

• Patent SE-59425, applied in 1919, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-21880E, applied in 1919, Mallat. Sistema di caricamento.

• Patent US-1375559, applied in 1919, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent FR-517248, applied in 1920, by Berchtold & Kunz, Unbranded. Tiralinee a serbatoio.

• Patent DE-337310, applied in 1919, Penkala. Matita meccanica.

• Patent US-1379890, applied in 1920, by Paul E. Wirt, Wirt. Caricamento a levetta.

• Patent US-1380109, applied in 1919, by Charles A. Luck, Conklin Pen Manufacturing Co.. Corpo penna in metallo.

• Patent GB-164043, applied in 1919, by John Edward Hayes, Byers & Hayes. Costruzione del pennino.

• Patent US-1381546, applied in 1919, by Wilhelm Dziambor, Montblanc. Calamaio da viaggio.

• Patent US-1381856, applied in 1921, by Archer Aston, Waterman. Dimostratore caricamento a levetta.

• Patent DE-338340, applied in 1915, Penkala. Matita meccanica.

• Patent FR-520595, applied in 1920, Stilus. Caricamento rientrante.

• Patent US-D058516, applied in 1921, by John C. Wahl, Wahl Eversharp. Motivo per guilloché.

• Patent US-1385187, applied in 1919, by Philip W. Olson, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-1386817, applied in 1919, by Alice Edna Wade, Lang - Curzon - Summit. Meccanismo per rientrante.

• Patent US-D058693, applied in 1921, by John C. Wahl, Wahl Eversharp. Motivo per guilloché, Grecian Border.

• Patent US-D058694, applied in 1921, by John H. Worthy, Wahl Eversharp. Motivo per guilloché.

• Patent FR-22933E, applied in 1919, Mallat. Sistema di caricamento.

• Patent FR-22935E, applied in 1919, Mallat. Sistema di caricamento.

• Patent US-1390366, applied in 1919, by Roderick J. Mackenzie, Crocker. Caricamento hatchet filler.

• Patent GB-154556, applied in 1919, Klio-Werk. Meccanismo rientrante.

• Patent US-D059035, applied in 1919, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-D059052, applied in 1921, by John H. Worthy, Clarence W. Lund, Wahl Eversharp. Motivo per guilloché, Hanlin.

• Patent US-1391430, applied in 1917, by Milton C. Taylor, Wahl Eversharp. Caricamento a levetta.

• Patent FR-526035, applied in 1920, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent GB-169616, applied in 1920, by Jean-Marie Cavaillé, Unbranded. Sistema di caricamento.

• Patent GB-147522, applied in 1919, Paillard. Matite.

• Patent CH-91351, applied in 1920, Stilus. Caricamento rientrante.

• Patent FR-527150, applied in 1920, by Louis Badois, Météore - La Plume d'Or. Penna a caricamento capillare.

• Patent AT-85902, applied in 1919, by Joseph Müller, Unbranded. Penna a stilo.

• Patent US-1395316, applied in 1919, by John C. Wahl, Wahl Eversharp. Macchina per incisioni.

• Patent US-1395878, applied in 1921, by Henry J. Upton, Vaughn-Upton. Caricamento rientrante.

• Patent GB-171154, applied in 1920, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent FR-528716, applied in 1917, by Theodor Kovacs, Günther Wagner - Pelikan. Pennino per il Graphos.

• Patent FR-529601, applied in 1919, by Alice Edna Wade, Lang - Curzon - Summit. Meccanismo per rientrante.

• Patent FR-530688, applied in 1920, by Jean-Marie Cavaillé, Unbranded. Sistema di caricamento.

1922

• Patent US-1402409, applied in 1921, by Marx Finstone, Eclipse. Caricamento a siringa.

• Patent FR-531284, applied in 1920, by Charlesworth Livsey, Lang - Curzon - Summit. Caricamento rientrante.

• Patent US-1406077, applied in 1917, by Arthur F. Poole, Wahl Eversharp. Matita meccanica.

• Patent GB-175382, applied in 1920, by Louis Badois, Météore - La Plume d'Or. Stilografica completa.

• Patent US-1407552, applied in 1920, by Rudolph Wm. Lotz, Kraker. Caricamento a levetta.

• Patent DE-349147, applied in 1920, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent DE-349408, applied in 1919, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent DE-349410, applied in 1920, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1408545, applied in 1920, by John Straka, Wahl Eversharp. Base stiloforo.

• Patent AT-87532B, applied in 1915, Penkala. Matita meccanica.

• Patent US-1409616, applied in 1921, Unbranded. Caricamento a siringa.

• Patent CH-93596, applied in 1919, Paillard. Matite.

• Patent US-1411715, applied in 1921, by Marx Finstone, Eclipse. Matita meccanica.

• Patent DE-351930, applied in 1919, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-1415211, applied in 1920, by John C. Wahl, Wahl Eversharp. Macchina per incisioni.

• Patent US-1419026, applied in 1921, by Arthur O. Dahlberg, The Parker Pen Company. Sistema di caricamento.

• Patent US-1420275, applied in 1918, by Lucifer J. Most, Unbranded. Matita meccanica.

• Patent FR-539994, applied in 1921, Unbranded. Fermaglio a pinza.

• Patent GB-182234, applied in 1921, by George Davies, Wyvern Fountain Pen Company. Matita meccanica per combo.

• Patent DE-356212, applied in 1919, Paillard. Matite.

• Patent GB-182620, applied in 1921, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Fondello.

• Patent DE-356665, applied in 1919, by Duncan Cameron, Cameron. Sistema di caricamento.

• Patent US-1423603, applied in 1919, by David J. La France, William P. De Witt, De Witt-La France. Matita meccanica.

• Patent GB-183340, applied in 1921, by William Livsey, Lang - Curzon - Summit. Montaggio fermaglio.

• Patent GB-184071, applied in 1921, by Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent US-1425871, applied in 1921, by John G. Liddel, Moore Pen Company. Matita meccanica.

• Patent US-1426200, applied in 1920, by Theodor Kovacs, Günther Wagner - Pelikan. Prototipo del Graphos.

• Patent US-1426744, applied in 1919, by Charles R. Keeran, Frank R. Taylor, Autopoint. Matita meccanica.

• Patent DE-357349, applied in 1919, by Alice Edna Wade, Lang - Curzon - Summit. Meccanismo per rientrante.

• Patent US-1428195, applied in 1921, by John C. Wahl, Peter G. Jacobson, Wahl Eversharp. Scatola mine.

• Patent GB-185512, applied in 1921, by Harold Ashley Stevens, Oscar Drewe Harris, Whytwarth. Limitatore per torsione.

• Patent AT-89597, applied in 1919, Paillard. Matite.

• Patent GB-186818, applied in 1920, by Louis Badois, Météore - La Plume d'Or. Caricamento a torsione.

• Patent DE-361490, applied in 1919, Klio-Werk. Sistema per una rientrante.

• Patent US-1433325, applied in 1919, by Arthur Winter, Porter S. Morgan, Dictator. Stilografica a inchiostro solubile.

• Patent CA-225369, applied in 1921, by Donald Ladd, Dictator. Matita meccanica.

• Patent US-1434684, applied in 1919, by David J. La France, William P. De Witt, De Witt-La France. Matita meccanica.

• Patent US-1435446, applied in 1921, by David W. Beaumel, Beaumel. Caricamento a levetta.

• Patent US-1437180, applied in 1920, by Ernest E. Hill, Wahl Eversharp. Matita meccanica.

• Patent FR-25039E, applied in 1920, by Louis Badois, Météore - La Plume d'Or. Caricamento a torsione.

1923

• Patent DE-366684, applied in 1920, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore e sezione.

• Patent US-1443399, applied in 1921, Inkograph. Matita meccanica.

• Patent US-1443515, applied in 1921, by Arthur Winter, Dictator. Stilografica a inchiostro concentrato.

• Patent DE-368070, applied in 1920, by Charlesworth Livsey, Lang - Curzon - Summit. Caricamento rientrante.

• Patent DE-368196, applied in 1920, Stilus. Caricamento rientrante.

• Patent FR-549123, applied in 1921, Dictator. Matita meccanica.

• Patent DE-369345, applied in 1921, Dictator. Matita meccanica.

• Patent US-1446524, applied in 1922, by Ivan D. Tefft, Wahl Eversharp. Levetta Wahl Engine Turned.

• Patent US-1447790, applied in 1921, by Theodor Kovacs, Günther Wagner - Pelikan. Meccanismo per ricarica esterno.

• Patent GB-194751, applied in 1921, by Ryosuke Namiki, Pilot. Sistema di controllo del flusso.

• Patent GB-179145, applied in 1921, by Donald Ladd, Dictator. Matita meccanica.

• Patent GB-194895, applied in 1922, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent US-1450162, applied in 1921, by William Livsey, Lang - Curzon - Summit. Montaggio fermaglio.

• Patent CH-98575, applied in 1921, by Louis Badois, Météore - La Plume d'Or. Penna stilografica.

• Patent US-1450398, applied in 1919, by Arthur Winter, Dictator. Stilografica a inchiostro concentrato.

• Patent US-1452653, applied in 1920, by Arthur F. Poole, George B. Vernier, Wahl Eversharp. Caricamento a levetta.

• Patent US-1452674, applied in 1919, by Albert Edmund Barnes, Security Pen Corporation. Dispositivo di sicurezza per assegni.

• Patent FR-552565, applied in 1921, by Samuel Wade, Whytwarth. Limitatore per torsione.

• Patent DE-376257, applied in 1921, Whytwarth. Limitatore per torsione.

• Patent DE-376387, applied in 1921, Montblanc. Matita meccanica.

• Patent US-1457011, applied in 1920, by Horace H. Welch, Wahl Eversharp. Matita meccanica.

• Patent US-1457765, applied in 1921, by Louis Badois, Météore - La Plume d'Or. Penna stilografica.

• Patent US-1457875, applied in 1922, by Noel H. Coates, Unbranded. Penna a stilo.

• Patent FR-554761, applied in 1921, by Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent US-1459073, applied in 1919, by Stanley E. Peters, Security Pen Corporation. Sistema di caricamento.

• Patent DE-377877, applied in 1922, Fend. Matita meccanica.

• Patent FR-556090, applied in 1921, by William Livsey, Lang - Curzon - Summit. Montaggio fermaglio.

• Patent US-1463803, applied in 1922, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent GB-202093, applied in 1922, by William Livsey, Lang - Curzon - Summit. Meccanismo per safety.

• Patent GB-202183, applied in 1922, Montblanc. Matita meccanica.

• Patent DE-379275, applied in 1922, Montblanc. Matita meccanica.

• Patent US-1465957, applied in 1922, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent AT-94205, applied in 1921, Dictator. Matita meccanica.

• Patent US-1468025, applied in 1923, by David Klein, Eclipse. Montaggio fermaglio.

• Patent US-1469921, applied in 1922, by John Dutchak, Unbranded. Sistema di caricamento.

• Patent DE-381782, applied in 1922, Montblanc. Tiralinee a serbatoio.

• Patent CA-234983, applied in 1921, by John D. Turner, Dictator. Penna stilografica a inchiostro concentrato.

• Patent FR-561704, applied in 1922, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent DE-383712, applied in 1922, Montblanc. Tiralinee a serbatoio.

• Patent US-1472962, applied in 1920, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent US-1472963, applied in 1922, by William P. De Witt, De Witt-La France. Caricamento a levetta.

• Patent US-1473215, applied in 1922, by William P. De Witt, De Witt-La France. Espositore per penne.

• Patent US-1473701, applied in 1922, by Byron B. Goldsmith, Unbranded. Calamaio per inchiostro solubile.

• Patent CH-102306, applied in 1922, Dictator. Matita meccanica.

• Patent DE-384550, applied in 1922, by Vatroslav Lederer, Penkala. Cannuccia.

• Patent US-1475953, applied in 1923, by David Klein, Eclipse. Caricamento a levetta.

• Patent US-1475954, applied in 1923, by David Klein, Eclipse. Sistema di caricamento.

• Patent FR-563434, applied in 1922, Montblanc. Tiralinee a serbatoio.

• Patent GB-207904, applied in 1922, by Herbert Gornell, Gold Starry. Sistema di caricamento.

• Patent DE-386670, applied in 1923, Montblanc. Calamaio da viaggio.

• Patent DE-387264, applied in 1921, Penkala. Matita meccanica.

1924

• Patent US-1479996, applied in 1922, by Gustav A. Lundmark, Unbranded. Combo stilo/matita.

• Patent US-1480302, applied in 1922, by Ernst Rösler, Montblanc. Tiralinee a serbatoio.

• Patent DE-388317, applied in 1921, John Hancock. Caricamento a cartuccia.

• Patent US-1480690, applied in 1922, by Stanley E. Peters, Security Pen Corporation. Dispositivo di sicurezza per assegni.

• Patent GB-195394, applied in 1922, Montblanc. Tiralinee a serbatoio.

• Patent DE-389138, applied in 1921, by William Livsey, Lang - Curzon - Summit. Montaggio fermaglio.

• Patent US-1482568, applied in 1921, by John H. Kritikson, Security Pen Corporation. Sistema di caricamento.

• Patent US-1483675, applied in 1920, by Stanley E. Peters, Security Pen Corporation. Alimentatore.

• Patent US-1484077, applied in 1920, by Earl F. Pierce, Wahl Eversharp. Matita meccanica.

• Patent US-1484683, applied in 1921, by Lewis M. Tebbel, The Parker Pen Company. Caricamento spoon filler.

• Patent US-1485073, applied in 1921, by Charles J. Funk, Wahl Eversharp. Matita meccanica.

• Patent CA-238293, applied in 1922, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent US-1486246, applied in 1922, by Oscar B. Hjorth, The Parker Pen Company. Caricamento a pulsante di fondo.

• Patent US-1486812, applied in 1922, by George Sweetser, Unbranded. Bottiglia di inchiostro.

• Patent DE-391847, applied in 1922, by Vatroslav Lederer, Penkala. Matita meccanica.

• Patent US-1486973, applied in 1922, by William J. Lilly, Unbranded. Penna per calligrafia.

• Patent FR-568196, applied in 1923, by Etienne Luciani-Tournon, Unbranded. Cappuccio e clip.

• Patent US-1488385, applied in 1921, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent GB-213142, applied in 1923, by Alexander Munro, Research Fountain Pen. Caricamento a sfiatatoio.

• Patent FR-568834, applied in 1922, De La Rue - Onoto. Caricamento a levetta.

• Patent US-1489590, applied in 1920, by Herbert L. Carman, Swan. Matita meccanica.

• Patent US-1490231, applied in 1920, by Arthur F. Poole, Wahl Eversharp. Montaggio fermaglio.

• Patent US-1490244, applied in 1917, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1490245, applied in 1920, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1490246, applied in 1921, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1490247, applied in 1921, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1490681, applied in 1921, by Harold Ashley Stevens, Whytwarth. Limitatore per torsione.

• Patent US-1490686, applied in 1921, by John C. Wahl, Wahl Eversharp. Caricamento a levetta.

• Patent US-1490735, applied in 1923, by William P. De Witt, De Witt-La France. Caricamento a levetta.

• Patent US-1492451, applied in 1923, by Walter E. Guyot, The Parker Pen Company. Caricamento a pulsante di fondo.

• Patent FR-570444, applied in 1923, by Karl Fend, Fend. Matita meccanica.

• Patent US-1493833, applied in 1922, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent NL-11429, applied in 1919, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent GB-215803, applied in 1922, by Thomas Edward Ruddherham, Osmond Blythe Wade, Lang - Curzon - Summit. Pennino rientrante.

• Patent DE-396083, applied in 1923, Montblanc. Decorazione testa cappuccio.

• Patent DE-396084, applied in 1919, by Giuseppe Tibaldi, Tibaldi. Caricamento rientrante.

• Patent US-1495890, applied in 1920, by Joseph F. Day, Unbranded. Combo stilo/matita.

• Patent US-1498558, applied in 1923, by Arthur K. Liddell, Corona Pen Company. Alimentatore.

• Patent GB-217783, applied in 1923, by William Livsey, Lang - Curzon - Summit. Montaggio fermaglio.

• Patent FR-574169, applied in 1922, by Herbert Gornell, Gold Starry. Sistema di caricamento.

• Patent FR-574637, applied in 1923, by Louis Badois, Météore - La Plume d'Or. Gruppo pennino.

• Patent DE-398912, applied in 1923, Montblanc. Boccetta di inchiostro.

• Patent US-1504747, applied in 1921, by William P. De Witt, De Witt-La France. Espositore.

• Patent DE-400356, applied in 1923, Montblanc. Caricamento pneumatico.

• Patent GB-220435, applied in 1923, by Karl Fend, Fend. Matita meccanica.

• Patent US-1506207, applied in 1922, by John C. Wahl, Wahl Eversharp. Attacco per matita meccanica.

• Patent GB-220793, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Pennino intercambiabile.

• Patent US-1506795, applied in 1917, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1507622, applied in 1920, by Robert G. Pilkington, Wahl Eversharp. Montaggio fermaglio.

• Patent US-1507729, applied in 1922, by Arthur O. Dahlberg, The Parker Pen Company. Sistema di caricamento.

• Patent US-1507782, applied in 1920, by Carl F. Litts, W. A. Sheaffer Pen Company. Alimentatore.

• Patent US-1508311, applied in 1922, by Francis W. Vaughn, Vaughn-Upton. Caricamento a siringa rovesciata.

• Patent DE-401710, applied in 1922, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent US-1508795, applied in 1921, by Clifford N. Johnson, Conklin Pen Manufacturing Co.. Matita meccanica.

• Patent CA-243009, applied in 1922, by Harry Ross, De La Rue - Onoto. Caricamento a levetta.

• Patent US-D065636, applied in 1922, by Samuel V. Corona, Corona Pen Company. Corpo penna e testa cappuccio.

• Patent US-1510613, applied in 1923, by Edward M. Slack, Unbranded. Combo stilo/matita.

• Patent US-1510618, applied in 1921, by Raymond T. Bell, Wahl Eversharp. Matita meccanica.

• Patent GB-222913, applied in 1923, by Arthur Gilbert, Mentmore. Macchina per lucidatura.

• Patent GB-212564, applied in 1923, by Louis Badois, Météore - La Plume d'Or. Gruppo pennino.

• Patent US-1511225, applied in 1922, by Gabriel Larsen, Waterman. Matita meccanica.

• Patent DE-404517, applied in 1923, Montblanc. Boccetta di inchiostro.

• Patent US-1514002, applied in 1923, by George M. Kracker, Kraker. Cappuccio.

• Patent GB-224084, applied in 1923, by Leslie Roy Wade, Lang - Curzon - Summit. Sistema di blocco dell'inchiostro.

• Patent DE-406609, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1517411, applied in 1922, by William P. De Witt, De Witt-La France. Penna in metallo.

• Patent AT-98903, applied in 1922, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent FR-582950, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Pennino intercambiabile.

1925

• Patent US-1524068, applied in 1921, Inkograph. Penna a stilo.

• Patent GB-228672, applied in 1923, by William Livsey, Lang - Curzon - Summit. Caricamento a levetta.

• Patent CH-107012, applied in 1924, by Arnold Roggen, Hermann Burkhardt, Unbranded. Penna a stilo.

• Patent US-1526365, applied in 1923, by Charles S. Nudelman, Schnell. Combo stilo/matita.

• Patent FR-585289, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1527971, applied in 1923, by Arthur Forsell, Robert H. Harmon, Unbranded. Penna a sfera.

• Patent US-1528379, applied in 1924, by David J. La France, Chilton. Caricamento pneumatico.

• Patent GB-229928, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-D066791, applied in 1923, by Davis L. Davis, W. A. Sheaffer Pen Company. Corpo penna.

• Patent DE-411627, applied in 1923, Fend. Matita meccanica.

• Patent US-1510613, applied in 1924, by John J. Lynagh, Unbranded. Caricamento a levetta.

• Patent US-1531419, applied in 1921, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Clip per matita meccanica.

• Patent DE-411787, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Pennino intercambiabile.

• Patent US-1533087, applied in 1923, by Gerald L. Bassett, Conklin Pen Manufacturing Co.. Matita meccanica.

• Patent FR-587602, applied in 1923, Météore - La Plume d'Or. Lega per pennini.

• Patent GB-232519, applied in 1924, by William Livsey, Stephens, Lang - Curzon - Summit. Caricamento a levetta.

• Patent US-1537226, applied in 1922, by William P. De Witt, De Witt-La France. Caricamento a levetta.

• Patent FR-588922, applied in 1924, De La Rue - Onoto. Tappo per bottiglie di inchiostro.

• Patent DE-413988, applied in 1924, Montblanc. Caricamento a siringa rovesciata.

• Patent FR-589169, applied in 1924, De La Rue - Onoto. Caricamento a levetta.

• Patent FR-589454, applied in 1924, Montblanc. Sistema di caricamento.

• Patent US-1540416, applied in 1924, by Ryosuke Namiki, Pilot. Caricamento a levetta.

• Patent US-1540763, applied in 1921, by Samuel V. Corona, Corona Pen Company. Caricamento a pulsante di fondo.

• Patent GB-235447, applied in 1924, by George Frank Smith, Conway Stewart. Caricamento a levetta.

• Patent FR-590697, applied in 1924, De La Rue - Onoto. Alimentatore.

• Patent US-1544161, applied in 1921, by Theodor Kovacs, Günther Wagner - Pelikan. Prototipo del Graphos.

• Patent GB-236475, applied in 1925, by Wenzel Franz Brynda, Aladdin Industries Limited. Matita meccanica multipla.

• Patent GB-225200, applied in 1923, by Louis Badois, Météore - La Plume d'Or. Lega per pennini.

• Patent FR-592156, applied in 1923, Fend. Matita meccanica.

• Patent GB-237472, applied in 1924, by Arthur Gilbert, Mentmore. Sezione intercambiabile.

• Patent GB-238288, applied in 1924, by Gordon Dunkerley, Swan. Calamaio.

• Patent GB-238110, applied in 1924, by Ernst Rösler, Montblanc. Caricamento a siringa rovesciata.

• Patent US-RE16145, applied in 1918, by John C. Wahl, Wahl Eversharp. Caricamento a levetta.

• Patent FR-593376, applied in 1925, by Yves Zuber, Stylomine. Fissaggio alimentatore e sezione.

• Patent US-1551601, applied in 1922, by Frederick W. Heinzman, Swan. Matita meccanica.

• Patent US-1551604, applied in 1922, by Lucifer J. Most, Swan. Matita meccanica.

• Patent GB-239274, applied in 1924, by Henry J. Dixon, De La Rue - Onoto. Caricamento a levetta.

• Patent FR-594143, applied in 1925, by Yves Zuber, Stylomine. Dispositivo antiperdita.

• Patent DE-418471, applied in 1924, Soennecken. Caricamento rientrante.

• Patent US-1554517, applied in 1925, by Daniel A. O'Neill, Unbranded. Fermaglio aprilettera.

• Patent US-1554604, applied in 1919, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-1554803, applied in 1925, by Harry Esterow, Ideal Metal Products. Montaggio fermaglio.

• Patent US-1555407, applied in 1923, by William I. Ferris, Waterman. Dispensatore inchiostro.

• Patent US-1556701, applied in 1924, by John G. Liddel, Moore Pen Company. Matita meccanica.

• Patent US-1557357, applied in 1922, by Herbert Gornell, Gold Starry. Sistema di caricamento.

• Patent FR-595963, applied in 1925, by Eugene Moreau, Paillard. Blocco afflusso inchiostro.

• Patent US-1558553, applied in 1924, by Theodor Kovacs, Günther Wagner - Pelikan. Prototipo del Graphos.

• Patent US-1560485, applied in 1924, by Ernst Rösler, Montblanc. Caricamento a siringa rovesciata.

• Patent CA-255206, applied in 1921, by John H. Kritikson, Security Pen Corporation. Sistema di caricamento.

• Patent US-1561590, applied in 1924, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Caricamento a levetta.

• Patent US-1562267, applied in 1921, by John C. Wahl, Wahl Eversharp. Costruzione Wahl Engine Turned.

• Patent GB-243110, applied in 1924, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent DE-422602, applied in 1924, Unbranded. Impugnatura per matita.

• Patent US-1567059, applied in 1924, by Stormont Josselyn, Crocker. Variante dell'hatchet filler.

• Patent US-1567823, applied in 1921, by John C. Wahl, Wahl Eversharp. Sezione Wahl Engine Turned.

• Patent US-1567824, applied in 1922, by John C. Wahl, Wahl Eversharp. Levetta Wahl Engine Turned.

• Patent US-1567910, applied in 1923, by Wenzel Franz Brynda, Robert Pollack, Aladdin Industries Limited. Matita meccanica multipla.

• Patent FR-598504, applied in 1924, Edacoto. Sistema di caricamento.

1926

• Patent US-1569783, applied in 1922, by Eric G. Pearson, Eagle. Caricamento a levetta.

• Patent GB-247038, applied in 1925, by Ryosuke Namiki, Pilot. Lavorazione della Laccanite.

• Patent US-1574266, applied in 1921, by John C. Wahl, Wahl Eversharp. Caricamento a levetta.

• Patent US-1574457, applied in 1921, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-D066791, applied in 1924, by Davis L. Davis, W. A. Sheaffer Pen Company. Corpo penna cesellato.

• Patent US-1574919, applied in 1924, by Julian H. Murdock, John Hancock. Caricamento a cartuccia.

• Patent US-1574929, applied in 1922, by Robert T. Pollock, John Hancock. Alimentatore.

• Patent US-1574930, applied in 1924, by Robert T. Pollock, John Hancock. Alimentatore.

• Patent FR-601664, applied in 1925, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1576588, applied in 1925, by Marx Finstone, Eclipse. Fusto da fogli di celluloide.

• Patent GB-265005, applied in 1927, by Marx Finstone, Eclipse. Fusto da fogli di celluloide.

• Patent US-1577548, applied in 1925, by Henry J. Upton, Moore Pen Company. Cappuccio decorabile.

• Patent US-1577646, applied in 1921, by Charlesworth Livsey, Lang - Curzon - Summit. Caricamento rientrante.

• Patent US-1578565, applied in 1923, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1580093, applied in 1925, by Henry J. Upton, Chilton. Caricamento pneumatico.

• Patent FR-603093, applied in 1924, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent US-1583579, applied in 1923, by William P. De Witt, Carter's Ink Company. Realizzazione del cappuccio.

• Patent US-RE16349, applied in 1924, by Ivan D. Tefft, Wahl Eversharp. Levetta Wahl Engine Turned.

• Patent US-1585805, applied in 1922, by John C. Wahl, Ivan D. Tefft, Wahl Eversharp. Levetta Wahl Engine Turned.

• Patent FR-605510, applied in 1925, by Wenzel Franz Brynda, Aladdin Industries Limited. Matita meccanica multipla.

• Patent US-1586541, applied in 1922, by John C. Wahl, Wahl Eversharp. Cappuccio Wahl Engine Turned.

• Patent DE-430024, applied in 1924, Fabbrica Italiana Penne a Serbatoio Aurora. Matita meccanica.

• Patent DE-430677, applied in 1923, Montblanc. Caricamento a siringa rovesciata.

• Patent DE-430661, applied in 1925, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-D070575, applied in 1925, by George S. Parker, The Parker Pen Company. Matita Duofold.

• Patent US-1594319, applied in 1921, by Ryosuke Namiki, Pilot. Sistema di controllo del flusso.

• Patent US-1594740, applied in 1925, by Isaia Levi, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent GB-245448, applied in 1925, by Isaia Levi, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1596722, applied in 1922, by George H. Doyle, Dunn. Cappuccio della Dreadnaught.

• Patent US-1596811, applied in 1925, by Albert Craig, Wahl Eversharp. Sistema di caricamento.

• Patent DE-432836, applied in 1923, Aladdin Industries Limited. Matita meccanica multipla.

• Patent GB-256814, applied in 1925, by William Livsey, Lang - Curzon - Summit. Caricamento a siringa.

• Patent US-D070959, applied in 1926, by Frederick D. Hammons, W. A. Sheaffer Pen Company. Doppio stiloforo.

• Patent FR-610369, applied in 1925, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent FR-610947, applied in 1924, Fabbrica Italiana Penne a Serbatoio Aurora. Matita meccanica.

• Patent US-1600293, applied in 1925, by Ryosuke Namiki, Pilot. Lavorazione della Laccanite.

• Patent US-1602055, applied in 1925, by George Sweetser, De La Rue - Onoto. Penna a stilo.

• Patent CA-264967, applied in 1924, by Leslie Roy Wade, Lang - Curzon - Summit. Cappuccio a scorrimento.

• Patent US-1604906, applied in 1924, by Arthur Gilbert, Mentmore. Sezione intercambiabile.

• Patent US-1605151, applied in 1923, by Ivan D. Tefft, Wahl Eversharp. Montaggio fermaglio.

• Patent US-1606930, applied in 1925, by Howard L. Fischer, Redipoint. Sistema di caricamento.

• Patent US-1607048, applied in 1925, by Edward Bergquist, Unbranded. Sistema di caricamento.

• Patent US-1608707, applied in 1925, by George L. Middleton, Unbranded. Alimentatore per pennini da intinzione.

• Patent BE-337528, applied in 1925, by Hermann Burkhardt, Paul Grob-Hablützel, Unbranded. Penna a stilo.

• Patent CH-117009, applied in 1925, by Hermann Burkhardt, Unbranded. Penna a stilo.

• Patent DE-437904, applied in 1924, Swan. Calamaio.

• Patent FR-614071, applied in 1926, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1609387, applied in 1924, by George Sweetser, De La Rue - Onoto. Tappo per bottiglie di inchiostro.

• Patent US-1609567, applied in 1926, by Frank H. Mooney, Conklin Pen Manufacturing Co.. Fermaglio a molla.

• Patent US-1610185, applied in 1924, by Frank Turner, De La Rue - Onoto. Blocco afflusso inchiostro.

• Patent US-1610275, applied in 1925, by Marx Finstone, Eclipse. Montaggio fermaglio.

• Patent GB-263341, applied in 1926, by William Livsey, Lang - Curzon - Summit. Caricamento a pulsante di fondo.

1927

• Patent IT-281491, applied in 2024, Officine Meccaniche Armando Simoni. Penna da dottore con termometro..

• Patent US-1613804, applied in 1920, by Arthur F. Poole, Wahl Eversharp. Caricamento a levetta.

• Patent US-1613810, applied in 1922, by John C. Wahl, Wahl Eversharp. Matita meccanica.

• Patent US-1613811, applied in 1924, by Charles J. Funk, Wahl Eversharp. Lavorazione pennino.

• Patent US-1613812, applied in 1924, by John C. Wahl, Wahl Eversharp. Lavorazione pennino.

• Patent US-1614606, applied in 1926, by Harry Esterow, Ideal Metal Products. Montaggio verette.

• Patent DE-440614, applied in 1923, by Louis Badois, Météore - La Plume d'Or. Lega per pennini.

• Patent US-D071994, applied in 1926, by Robert Back, Glenn A. Cooper, Wahl Eversharp. Base stiloforo.

• Patent FR-617418, applied in 1926, by Yves Zuber, Stylomine. Fermaglio a molla.

• Patent US-1620529, applied in 1926, by William I. Ferris, Waterman. Base stiloforo.

• Patent US-1622316, applied in 1926, by Benjamin W. Hanle, Eagle. Montaggio fermaglio.

• Patent US-1624190, applied in 1922, by Ivan D. Tefft, Wahl Eversharp. Levetta Wahl Engine Turned.

• Patent US-1624194, applied in 1922, by John C. Wahl, Wahl Eversharp. Caricamento a levetta.

• Patent US-1624554, applied in 1925, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent GB-269614, applied in 1925, by Peter Andresen et al, Lang - Curzon - Summit. Calamaio.

• Patent DE-443893, applied in 1925, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent GB-270915, applied in 1925, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1629987, applied in 1926, by Horace L. Blackman, The Parker Pen Company. Bocchetta stiloforo.

• Patent FR-622686, applied in 1926, Edacoto. Righello assorbente.

• Patent GB-273357, applied in 1926, by Lionel Gunsberg, Emanuel Feldorf, Lang - Curzon - Summit, W. J. May and Co.. Caricamento top lever filler.

• Patent FR-628272, applied in 1926, by Lionel Gunsberg, Emanuel Feldorf, Lang - Curzon - Summit, W. J. May and Co.. Caricamento top lever filler.

• Patent US-1632371, applied in 1921, by George W. Gilman, The Parker Pen Company. Matita meccanica.

• Patent US-1633111, applied in 1925, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-623258, applied in 1925, by Louis Badois, Météore - La Plume d'Or. Blocco afflusso inchiostro.

• Patent US-1633896, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1634618, applied in 1925, by Oscar B. Hjorth, The Parker Pen Company. Sistema di caricamento.

• Patent DE-447802, applied in 1925, by Rokusaburo Namiki, Pilot. Matita meccanica.

• Patent DE-447572, applied in 1923, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1641096, applied in 1921, by Robert T. Pollock, John Hancock. Montaggio fermaglio.

• Patent US-1641829, applied in 1924, by Walter A. Sheaffer, Craig R. Sheaffer, W. A. Sheaffer Pen Company. Costruzione stiloforo.

• Patent US-1641846, applied in 1925, by Jules A. Fremon, Avery S. De Haven, W. A. Sheaffer Pen Company. Costruzione stiloforo.

• Patent US-1641949, applied in 1926, by Frederick D. Hammons, W. A. Sheaffer Pen Company. Costruzione stiloforo.

• Patent US-D073416, applied in 1927, by Julius L. Schnell, Schnell. Fermaglio.

• Patent FR-626665, applied in 1926, by Yves Zuber, Stylomine. Matita meccanica.

• Patent FR-626975, applied in 1926, Edacoto. Matita meccanica.

• Patent DE-448931, applied in 1925, Aladdin Industries Limited. Matita meccanica multipla.

• Patent US-1645167, applied in 1923, by George A. Theobald, Theodore A. Olson, John Hancock. Macchina costruzione cartucce.

• Patent US-1647093, applied in 1922, by Paul S. Hauton, The Parker Pen Company. Montaggio fermaglio.

• Patent FR-628553, applied in 1926, Edacoto. Blocco da ufficio.

• Patent US-1647882, applied in 1926, by George H. Osterouth Jr, Unbranded. Sistema di caricamento.

• Patent US-1648241, applied in 1926, Unbranded. Caricamento a siringa.

• Patent US-1648544, applied in 1926, by Marx Finstone, Eclipse. Base stiloforo.

• Patent US-1648545, applied in 1927, by Marx Finstone, Eclipse. Base stiloforo.

• Patent FR-629493, applied in 1926, Penkala. Matita meccanica.

• Patent DE-441349, applied in 1925, Kosca. Matita meccanica.

• Patent US-1649142, applied in 1925, by Thor Gustaf Thornblad, Unbranded. Matita meccanica.

• Patent US-1653151, applied in 1922, by William R. Cuthbert, William H. Lindemon, W. A. Sheaffer Pen Company. Matita meccanica.

1928

• Patent IT-6253-1928, applied in 1928, Officine Meccaniche Armando Simoni. Snodo della boccola di uno stiloforo.

• Patent GB-266338, applied in 1926, Penkala. Matita meccanica.

• Patent US-D074242, applied in 1925, by Walter A. Sheaffer, Craig R. Sheaffer, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent GB-283677, applied in 1926, by David Finburgh et al, Wyvern Fountain Pen Company. Matita meccanica.

• Patent US-1657033, applied in 1922, by Robert T. Pollock, John Hancock. Caricamento a cartuccia.

• Patent US-1658940, applied in 1921, by Robert T. Pollock, John Hancock. Caricamento a cartuccia.

• Patent GB-260304, applied in 1925, by Hermann Burkhardt, Paul Grob-Hablützel, Unbranded. Penna a stilo.

• Patent GB-284412, applied in 1926, by Charles Gerald Stephens, Frank Carr Fincham, Stephens. Boccetta.

• Patent GB-284529, applied in 1927, by Karl Fend, Fend. Matita meccanica.

• Patent US-1658147, applied in 1926, by Harry E. Waldron, W. A. Sheaffer Pen Company. Costruzione stiloforo.

• Patent US-1661225, applied in 1925, by Theodor Kovacs, Günther Wagner - Pelikan. Caricamento rientrante.

• Patent DE-457462, applied in 1926, Günther Wagner - Pelikan. Caricamento a stantuffo.

• Patent FR-636029, applied in 1927, Fend. Matita meccanica.

• Patent GB-289969, applied in 1927, by Henry J. Dixon, De La Rue - Onoto. Caricamento a levetta.

• Patent US-1669036, applied in 1926, by Horace L. Blackman, Oscar B. Hjorth, The Parker Pen Company. Bocchetta stiloforo.

• Patent US-1669040, applied in 1926, by William L. Cannif, The Parker Pen Company. Bocchetta stiloforo.

• Patent US-1669714, applied in 1926, by David J. La France, Carter's Ink Company. Caricamento a levetta.

• Patent US-1671125, applied in 1923, by Robert T. Pollock, John Hancock. Cartuccia di inchiostro.

• Patent GB-291607, applied in 1927, by Arthur Stanley Jones, Conway Stewart. Alimentatore.

• Patent US-1673579, applied in 1927, by Louis Morrison, Morrison. Levetta.

• Patent US-1674259, applied in 1927, by Bernard M. Palmer, The Parker Pen Company. Bocchetta per matita meccanica.

• Patent US-1674260, applied in 1927, by Bernard M. Palmer, The Parker Pen Company. Bocchetta per matita meccanica.

• Patent US-1674261, applied in 1927, by Bernard M. Palmer, The Parker Pen Company. Bocchetta per matita meccanica.

• Patent FR-639313, applied in 1927, by Charlesworth Livsey, Lang - Curzon - Summit. Caricamento rientrante.

• Patent FR-639606, applied in 1927, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1675543, applied in 1926, by Jules A. Fremon, Avery S. De Haven, W. A. Sheaffer Pen Company. Costruzione stiloforo.

• Patent US-1675826, applied in 1920, by Walter A. Sheaffer, Lucifer J. Most, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent DE-464038, applied in 1926, Penkala. Matita meccanica.

• Patent US-1681954, applied in 1927, by Salomon M. Sager, Sager. Montaggio fermaglio.

• Patent GB-297194, applied in 1927, by Arthur Stanley Jones, Conway Stewart. Sistema di caricamento.

• Patent FR-33407E, applied in 1927, De La Rue - Onoto. Caricamento a levetta.

• Patent DE-466010, applied in 1925, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent GB-297903, applied in 1927, by Frederick Elsey Double, Stephens, Lang - Curzon - Summit. Sistema di caricamento tipo push-knob.

• Patent GB-288176, applied in 1925, by Isaia Levi, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent DE-467712, applied in 1926, Kosca. Matita meccanica.

• Patent US-D076794, applied in 1927, by Walter E. Guyot, The Parker Pen Company. Base stiloforo.

• Patent DE-468697, applied in 1927, Kosca. Matita meccanica.

• Patent US-1694945, applied in 1925, by Charles R. Keeran, Unbranded. Matita meccanica.

• Patent GB-302015, applied in 1926, by Paul Kohler, Christian Schaefer, Kosca. Matita meccanica.

• Patent CH-130454, applied in 1927, Kosca. Matita meccanica.

• Patent US-1696183, applied in 1928, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Montaggio fermaglio.

• Patent US-1696218, applied in 1926, by George E. Sweetnam, Oreck James, W. A. Sheaffer Pen Company. Costruzione stiloforo.

1929

• Patent IT-4572-1929, applied in 1929, The King. Sistema di caricamento.

• Patent GB-303699, applied in 1927, by Isaia Levi, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent GB-304922, applied in 1928, by Arthur Stanley Jones, Conway Stewart. Penna a stilo.

• Patent CA-287009, applied in 1927, by Rodolfo Debenedetti, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1702954, applied in 1928, by Benjamin J. Title, Unbranded. Fermaglio a molla.

• Patent US-1704470, applied in 1926, by George W. Gilman, Corona Pen Company. Caricamento a pulsante di fondo.

• Patent FR-653061, applied in 1927, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1705656, applied in 1926, by Horace L. Blackman, Pen Desk Set Company. Bocchetta stiloforo.

• Patent US-1706616, applied in 1926, by Theodor Kovacs, Günther Wagner - Pelikan. Caricamento a stantuffo.

• Patent US-1706662, applied in 1926, by Walter E. Guyot, The Parker Pen Company. Costruzione stiloforo.

• Patent US-1706751, applied in 1926, by George A. Risk, Unbranded. Sistema di caricamento.

• Patent US-1706923, applied in 1927, Unbranded. Alimentatore.

• Patent CH-132052, applied in 1927, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1708671, applied in 1927, by Daniel W. Hemming, Waterman. Macchina per firme multiple.

• Patent US-RE16349, applied in 1926, by Horace L. Blackman, Pen Desk Set Company. Bocchetta stiloforo.

• Patent US-1712304, applied in 1924, by Frank J. Kristofek, Redipoint. Sistema di caricamento.

• Patent US-1712850, applied in 1921, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-1714418, applied in 1927, by Rodolfo Debenedetti, Fabbrica Italiana Penne a Serbatoio Aurora. Matita meccanica.

• Patent FR-657681, applied in 1928, Edacoto. Matita meccanica.

• Patent US-1717001, applied in 1927, by Walter F. Benson, Unbranded. Fermaglio a molla.

• Patent US-D078794, applied in 1928, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Combo Balance.

• Patent US-D078795, applied in 1928, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Corpo della Balance.

• Patent US-D078777, applied in 1928, by Harold P. Falvey et al, W. A. Sheaffer Pen Company. Matita meccanica della Balance.

• Patent US-1719895, applied in 1929, by Clinton E. Marshall, Unbranded. Fermaglio.

• Patent US-1720471, applied in 1927, by Rockel Alexander Fritsch, Unbranded. Fermaglio a molla.

• Patent US-1720717, applied in 1927, by Amos F. Bumpus, The Parker Pen Company. Matita meccanica.

• Patent US-1723171, applied in 1926, by William A. Houston, Dillman Charles Houston, Beaumel, Houston Fountain Pen. Sistema di caricamento.

• Patent DE-480844, applied in 1925, De La Rue - Onoto. Penna a stilo.

• Patent DE-481237, applied in 1929, Montblanc. Matita meccanica.

• Patent US-1724106, applied in 1921, by Robert T. Pollock, John Hancock. Caricamento a cartuccia.

• Patent US-1724107, applied in 1923, by Robert T. Pollock, John Hancock. Alimentatore.

• Patent NL-19802, applied in 1925, Aladdin Industries Limited. Matita meccanica multipla.

• Patent US-D079456, applied in 1929, by George Coby, Tripen. Corpo penna della Triad.

• Patent AT-114699, applied in 1927, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1733780, applied in 1927, by Frank C. Deli, William D. Groseclose, Autopoint. Sistema di caricamento.

• Patent US-D079691, applied in 1927, by Robert Back, Glenn A. Cooper, Pen Desk Set Company. Base stiloforo.

• Patent FR-35030E, applied in 1925, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent DE-485584, applied in 1928, Fend. Matita meccanica multipla.

• Patent GB-321309, applied in 1928, by Arthur Gilbert, Mentmore. Espositore penne.

• Patent US-1735199, applied in 1924, by Charles J. Funk, Wahl Eversharp. Pennino intercambiabile.

• Patent US-1735224, applied in 1924, by John C. Wahl, Wahl Eversharp. Pennino intercambiabile.

• Patent US-1737463, applied in 1925, by Isaia Levi, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1737948, applied in 1929, by Ignatz Salz, Salz. Base stiloforo.

• Patent FR-670953, applied in 1928, by Yves Zuber, Stylomine. Matita meccanica.

• Patent FR-671838, applied in 1929, Bayard. Base stiloforo.

• Patent GB-323129, applied in 1929, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Caricamento a levetta.

• Patent AT-115523, applied in 1928, Météore - La Plume d'Or, Uneman. Pennino della Pullman.

• Patent FR-672361, applied in 1929, Edacoto. Matita meccanica.

• Patent US-1741368, applied in 1923, by Edward E. Johnson, W. A. Sheaffer Pen Company. Porta penne da tavolo.

1930

• Patent IT-291022, applied in 2024, Officine Meccaniche Armando Simoni. Penna da dottore con termometro..

• Patent IT-291838, applied in 2024, Officine Meccaniche Armando Simoni. Penna del calligrafo..

• Patent US-1742711, applied in 1925, by William T. Maloney, Dictator. Matita meccanica.

• Patent US-1783681, applied in 1930, by Owen R. Terry, Unbranded. Allarme per rienpimento.

• Patent US-D080362, applied in 1929, by William R. Cuthbert, Earl W. Sodeberg, W. A. Sheaffer Pen Company. Matita meccanica Balance.

• Patent FR-673951, applied in 1929, Penkala. Matita meccanica.

• Patent GB-318982, applied in 1928, by Arthur O. Dahlberg, The Parker Pen Company. Caricamento Vacumatic.

• Patent US-1745483, applied in 1926, by Julius F. Hansen, Wahl Eversharp. Fusto rinforzato.

• Patent US-1746065, applied in 1928, by Franklin A. Van Sant, Unbranded. Variatore flessibilità pennino.

• Patent FR-675368, applied in 1928, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Progetto della Pullman/Uneman.

• Patent US-1749037, applied in 1928, by David J. La France, Carter's Ink Company. Base stiloforo.

• Patent US-1750410, applied in 1928, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-D081254, applied in 1929, by Kenneth S. Parker, The Parker Pen Company. Corpo penna Duofold.

• Patent US-1755586, applied in 1928, by Edward C. Berry, Chilton. Caricamento pneumatico.

• Patent FR-36278E, applied in 1928, Edacoto. Matita meccanica.

• Patent GB-312180, applied in 1928, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman.

• Patent US-1758199, applied in 1929, by Lucifer J. Most, Swan. Base stiloforo.

• Patent GB-329164, applied in 1929, by William Livsey, Stephens, Lang - Curzon - Summit. Sistema di caricamento in stile push-knob.

• Patent US-D081223, applied in 1929, by Robert Back, Wahl Eversharp. Corpo fermaglio e cappuccio Equi-Poised.

• Patent US-D081246, applied in 1929, by Gabriel Larsen, Waterman. Fermaglio Patrician.

• Patent US-D081247, applied in 1929, by Gabriel Larsen, Waterman. Fermaglio.

• Patent US-D081248, applied in 1930, by Gabriel Larsen, Waterman. Corpo penna Patrician.

• Patent US-1762103, applied in 1926, by William I. Ferris, Waterman. Base stiloforo.

• Patent US-1762104, applied in 1928, by Robert C. Liddell, Waterman. Base stiloforo.

• Patent GB-330009, applied in 1929, by Henry J. Dixon, De La Rue - Onoto. Base stiloforo.

• Patent GB-330010, applied in 1929, by Henry J. Dixon, De La Rue - Onoto. Fissaggio fermaglio.

• Patent GB-330144, applied in 1929, by James Jeff, Conway Stewart. Base stiloforo.

• Patent DE-497949, applied in 1928, Osmia. Sistema di caricamento.

• Patent DE-499497, applied in 1928, Osmia. Sistema di caricamento.

• Patent US-1767189, applied in 1927, by Gustav J. Sengbusch, Sengbusch Self-Closing Inkstand. Stiloforo ad intinzione.

• Patent US-D081435, applied in 1929, by George Coby, Tripen. Matita meccanica della Triad.

• Patent FR-686153, applied in 1928, Mentmore. Sistema di caricamento.

• Patent US-1772000, applied in 1929, by Walter E. Guyot, The Parker Pen Company. Base stiloforo.

• Patent US-D081741, applied in 1929, by Robert Back, Wahl Eversharp. Matita meccanica Doric.

• Patent US-D081742, applied in 1930, by Robert Back, Wahl Eversharp. Corpo penna Doric.

• Patent DE-504867, applied in 1925, Chilton. Caricamento pneumatico.

• Patent US-1772608, applied in 1925, by Frank J. Kristofek, Redipoint. Sistema di caricamento.

• Patent DE-505420, applied in 1928, Kosca. Sistema di caricamento.

• Patent US-1773475, applied in 1928, by Robert S. Casey, W. A. Sheaffer Pen Company. Tappo bottiglia per caricamento.

• Patent US-1775068, applied in 1927, by Rodolfo Debenedetti, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent GB-334913, applied in 1929, by Eugenio Verga, Columbus. Caricamento a cucchiaio.

• Patent FR-690093, applied in 1929, Montblanc. Matita meccanica.

• Patent US-1776384, applied in 1929, by Harry Garabedian, Tripen. Chiusura cappuccio della Triad.

• Patent DE-508058, applied in 1929, Montblanc. Caricamento push-knob.

• Patent US-1777736, applied in 1927, by James Salz, Salz. Caricamento a cartuccia.

• Patent GB-336190, applied in 1929, by Christian Lausen et al, Montblanc. Matita meccanica.

• Patent FR-691384, applied in 1929, by Joseph Michel Alphonse Luis Carre, Gold Starry. Sistema di caricamento.

• Patent US-D082341, applied in 1930, by Louis Morrison, Morrison. Fermaglio.

• Patent GB-336878, applied in 1928, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Pennino della Pullman/Uneman.

• Patent US-1779836, applied in 1926, by John C. Wahl, Wahl Eversharp. Pennino intercambiabile.

• Patent DE-511708, applied in 1925, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1780527, applied in 1929, by Morris Kolber, Diamond Point Pen Company. Penna corta a corpo/cappuccio.

• Patent GB-337794, applied in 1929, by George Stewart Vivian, Ford Patent Pen, Valentine. Sistema di caricamento.

• Patent GB-337835, applied in 1929, by George Stewart Vivian, Ford Patent Pen, Valentine. Sistema di caricamento.

• Patent FR-692937, applied in 1929, by Yves Zuber, Stylomine. Matita meccanica.

• Patent FR-693093, applied in 1930, Swan. Matita meccanica.

• Patent US-1782108, applied in 1925, by John C. Wahl, Pen Desk Set Company. Base stiloforo.

• Patent US-1782109, applied in 1926, by Jules A. Fremon, Avery S. De Haven, Pen Desk Set Company. Base stiloforo.

• Patent US-1782597, applied in 1928, by Horace L. Blackman, The Parker Pen Company. Espositore.

• Patent US-1783630, applied in 1927, by Walter A. Sheaffer, William R. Cuthbert, Pen Desk Set Company. Base stiloforo.

• Patent US-1783734, applied in 1928, by Clinton E. Marshall, Unbranded. Sistema di caricamento.

• Patent US-1784078, applied in 1929, by Armando Simoni, The King, Officine Meccaniche Armando Simoni. Sistema di caricamento.

• Patent GB-345564, applied in 1929, by Armando Simoni, The King, Officine Meccaniche Armando Simoni. Sistema di caricamento.

• Patent FR-695834, applied in 1929, by Armando Simoni, The King, Officine Meccaniche Armando Simoni. Sistema di caricamento.

• Patent FR-694955, applied in 1930, Penkala. Tampone.

• Patent US-D082821, applied in 1930, by Frank Furedy, Unbranded. Matita meccanica.

• Patent FR-695784, applied in 1930, Edacoto. Matita meccanica.

• Patent US-D082897, applied in 1930, by Louis Morrison, Morrison. Corpo penna con fermaglio.

• Patent US-1787406, applied in 1926, by Donald D. Mungen, Robert Back, Wahl Eversharp. Pennino intercambiabile.

1931

• Patent FR-696838, applied in 1930, Paillard. Bocchetta stiloforo.

• Patent US-1789522, applied in 1928, by Egon Fritsch, Météore - La Plume d'Or, Uneman. Meccanismo Pullman/Uneman.

• Patent US-1790037, applied in 1929, by Davide Dante Zerollo, Zerollo. Macchina per sigillare lettere.

• Patent FR-698700, applied in 1929, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1791776, applied in 1926, by John Estabrook Wahl, Wahl Eversharp. Macchinario per rifinitura pennini.

• Patent US-1793610, applied in 1929, by Walter E. Guyot, The Parker Pen Company. Base stiloforo.

• Patent US-1793824, applied in 1929, by Kenneth S. Parker, The Parker Pen Company. Sistema di caricamento.

• Patent US-1793910, applied in 1928, by William R. Cuthbert, William H. Lindemon, Pen Desk Set Company. Base stiloforo.

• Patent US-1794154, applied in 1929, by William R. Cuthbert, W. A. Sheaffer Pen Company. Montaggio fermaglio.

• Patent FR-700497, applied in 1929, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1794939, applied in 1930, by Alvin M. Yocom, Unbranded. Clip di sicurezza per marcare assegni.

• Patent US-D080609, applied in 1930, by Harry Esterow, Ideal Metal Products. Fermaglio.

• Patent GB-344185, applied in 1930, by Albert Meredith Spain, Unbranded. Sistema di caricamento.

• Patent US-D083591, applied in 1930, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Fermaglio.

• Patent US-D083592, applied in 1930, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo Endura Symetrik.

• Patent FR-701215, applied in 1930, by Firme G. Rau, G. Rau. Caricamento a converter.

• Patent DE-521001, applied in 1930, Penkala. Penna a due colori.

• Patent US-D083673, applied in 1930, by Harry Esterow, Ideal Metal Products. Fermaglio.

• Patent US-1798046, applied in 1928, by George Sweetser, Mentmore. Sistema di caricamento.

• Patent GB-326242, applied in 1928, by George Sweetser, Mentmore. Sistema di caricamento.

• Patent GB-345712, applied in 1930, Swan. Matita meccanica.

• Patent US-1800330, applied in 1925, by John C. Wahl, Albert H. Stenersen, Wahl Eversharp. Tappo per caricamento.

• Patent US-1800425, applied in 1927, by Leon H. Ashmore, Esterbrook. Pennino piatto.

• Patent US-D083908, applied in 1931, by Louis Morrison, Morrison. Forma levetta.

• Patent US-1801310, applied in 1927, by Walter Heagney, Pen Desk Set Company. Base stiloforo.

• Patent US-1801635, applied in 1929, by William E. Moore, The Parker Pen Company. Caricamento pneumatico.

• Patent CH-146581, applied in 1928, Mentmore. Sistema di caricamento.

• Patent GB-347540, applied in 1930, by Karl Fend, Fend. Matita meccanica.

• Patent GB-348036, applied in 1930, by Frederik G. Heard, Swan. Sistema di caricamento.

• Patent US-1804522, applied in 1929, by Frank T. Walsh, LeBoeuf. Caricamento sleeve filler.

• Patent US-D084146, applied in 1930, by David Kahn, Wearever. Corpo e cappuccio.

• Patent US-1807227, applied in 1926, by Craig R. Sheaffer, Pen Desk Set Company. Bocchette stiloforo.

• Patent US-1807415, applied in 1930, by David J. La France, De Witt-La France. Sezione con presa triangolare.

• Patent US-D084249, applied in 1931, by Gabriel Larsen, Waterman. Corpo Lady Patricia.

• Patent US-1808045, applied in 1929, by Henry Krause, Chilton. Fermaglio a molla.

• Patent DE-526445, applied in 1929, Heintze & Blanckertz. Pennino da intinzione.

• Patent US-1808779, applied in 1929, by William I. Ferris, Waterman. Montaggio clip.

• Patent US-1809416, applied in 1929, by John G. Liddel, Moore Pen Company. Penna a punta estraibile.

• Patent US-D084323, applied in 1931, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Matita meccanica Nozac.

• Patent US-1809985, applied in 1929, by Lucifer J. Most, Swan. Base stiloforo.

• Patent US-1809992, applied in 1925, by Oscar J. Sundstrand, Unbranded. Sistema riserva d'inchiostro.

• Patent US-D084394, applied in 1931, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-1811874, applied in 1929, by Edward C. Berry, Chilton. Alimentatore.

• Patent US-1811992, applied in 1929, by Benjamin R. Bell, Unbranded. Sistema di caricamento.

• Patent US-1812536, applied in 1929, by Theodor Kovacs, Günther Wagner - Pelikan. Punta fermaglio.

• Patent GB-351734, applied in 1930, by Isaia Levi, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent FR-38723E, applied in 1925, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-1813271, applied in 1929, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent GB-352184, applied in 1929, by Christian Lausen et al, Montblanc. Caricamento push-knob.

• Patent US-1814085, applied in 1929, by Walter E. Guyot, Pen Desk Set Company. Base stiloforo.

• Patent US-D084641, applied in 1931, by Gabriel Larsen, Waterman. Fondelli Patrician.

• Patent US-1816057, applied in 1929, by Salomon M. Sager, Sager. Bottiglia con ricettacolo.

• Patent CH-148515, applied in 1930, Swan. Matita meccanica.

• Patent BE-371161, applied in 1929, by Joseph Michel Alphonse Luis Carre, Gold Starry. Sistema di caricamento.

• Patent US-1818216, applied in 1929, by Oscar Federbusch, Unbranded. Sistema di caricamento.

• Patent US-1818743, applied in 1929, by Kenneth S. Parker, The Parker Pen Company. Alimentatore regolabile.

• Patent DE-531249, applied in 1928, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman.

• Patent US-1819383, applied in 1928, by Kenneth S. Parker, The Parker Pen Company. Caricamento a pulsante di fondo.

• Patent DE-532156, applied in 1930, Osmia. Matita meccanica.

• Patent US-D084943, applied in 1931, by Gabriel Larsen, Waterman. Corpo serie Waterman 9x.

• Patent US-D084944, applied in 1931, by Gabriel Larsen, Waterman. Matita serie Waterman 9x.

• Patent FR-710702, applied in 1931, Pilot. Calendario da scrittoio.

• Patent US-1821477, applied in 1929, by Kenneth S. Parker, The Parker Pen Company. Sistema di caricamento.

• Patent DE-532849, applied in 1930, Soennecken. Caricamento Rheingold.

• Patent US-1822166, applied in 1930, by Lucifer J. Most, Swan. Cappuccio per combo.

• Patent US-1822167, applied in 1930, by Lucifer J. Most, Swan. Cappuccio per combo.

• Patent US-1822168, applied in 1930, by Lucifer J. Most, Swan. Stiloforo convertibile.

• Patent US-1824012, applied in 1931, by Harry Esterow, Ideal Metal Products. Montaggio fermaglio.

• Patent US-1824249, applied in 1930, Inkograph. Penna a stilo.

• Patent FR-711982, applied in 1930, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1825014, applied in 1930, by Stanley E. Peters, Security Pen Corporation. Dispositivo di sicurezza per assegni.

• Patent US-1825090, applied in 1929, by Marion O. Reis, Unbranded. Cappuccio con tampone.

• Patent FR-712327, applied in 1930, by Yves Zuber, Stylomine. Sistema di caricamento.

• Patent US-1825931, applied in 1927, by Walter J. Baker, Wahl Eversharp. Precursore Ink Shut-off.

• Patent US-1826246, applied in 1929, by Max Heerklotz, Montblanc. Caricamento push-knob.

• Patent GB-358322, applied in 1930, by Asahi Watanabe, Pilot. Montaggio del fermaglio.

• Patent US-1828018, applied in 1930, by Gerald L. Bassett, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent US-1828019, applied in 1930, by Gerald L. Bassett, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent GB-359200, applied in 1930, Swan. Stiloforo convertibile.

• Patent GB-359230, applied in 1930, by George Stewart Vivian, Ford Patent Pen. Sistema di caricamento.

• Patent GB-359830, applied in 1931, by Kabushiki Kaisha Namiki Seisakusho, Pilot. Calendario da scrittoio.

• Patent DE-537280, applied in 1930, Osmia. Caricamento a pulsante di fondo.

• Patent GB-360918, applied in 1930, by Edward G. Knight, De La Rue - Onoto. Montaggio fermaglio.

• Patent US-1832170, applied in 1931, by Herman B. Wilson, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent US-1833244, applied in 1929, by Wilhelm Dziabor, Montblanc. Matita meccanica.

• Patent US-D085655, applied in 1931, by James J. Larmour, Chilton. Base stiloforo.

• Patent GB-363935, applied in 1931, by Rinji Nomura, Pilot. Coppiglia per stiloforo.

1932

• Patent US-1840110, applied in 1930, by Henry Krause, Chilton. Meccanismo di bloccaggio.

• Patent GB-364436, applied in 1931, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman.

• Patent US-1842503, applied in 1931, by Daniel V. Bowen, Waterman. Base stiloforo.

• Patent US-1842677, applied in 1929, by Theodor Kovacs, Günther Wagner - Pelikan. Calamaio da tavolo.

• Patent US-D086111, applied in 1931, by William R. Cuthbert, W. A. Sheaffer Pen Company. Fermaglio.

• Patent FR-719763, applied in 1930, by Yves Zuber, Stylomine. Matita meccanica.

• Patent US-1845293, applied in 1929, by David J. La France, Carter's Ink Company. Matita meccanica.

• Patent DE-544477, applied in 1929, Montblanc. Alimentatore.

• Patent US-1846604, applied in 1925, by William T. Maloney, Dictator. Matita meccanica.

• Patent FR-726185, applied in 1931, by Giuseppe Tibaldi, Tibaldi. Caricamento a pulsante di fondo.

• Patent US-D086297, applied in 1931, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Matita meccanica Nozac.

• Patent US-1907626, applied in 1930, Inkograph. Apparecchio di visualizzazione.

• Patent US-D086433, applied in 1931, by Robert Back, Wahl Eversharp. Veretta della Doric.

• Patent CH-153221, applied in 1929, Fend. Matita meccanica multipla.

• Patent US-1851257, applied in 1930, by Eugene Le Boeuf, LeBoeuf. Caricamento sleeve filler.

• Patent US-1852094, applied in 1930, by Herman K. Stempel, W. A. Sheaffer Pen Company. Caricamento a levetta.

• Patent US-1853316, applied in 1927, by Oscar F. Nilsson, Joseph Bachrach, Waterman. Calamaio.

• Patent US-1853731, applied in 1929, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-1853876, applied in 1931, by Ivan D. Tefft et al, The Parker Pen Company. Base stiloforo.

• Patent FR-723884, applied in 1931, Pilot. Stiloforo a supporto magnetico.

• Patent US-1854747, applied in 1931, by David J. La France, Carter's Ink Company. Montaggio fermaglio.

• Patent DE-549180, applied in 1929, by Hans Paasch, Unbranded. Penna.

• Patent US-D086826, applied in 1932, by Herbert L. Carman, Swan. Corpo penna.

• Patent GB-373123, applied in 1931, by Arthur Gilbert, Mentmore. Pennino in acciaio.

• Patent US-1860093, applied in 1930, by Walter E. Guyot, The Parker Pen Company. Base stiloforo.

• Patent DE-551061, applied in 1929, by Armando Simoni, The King, Officine Meccaniche Armando Simoni. Sistema di caricamento.

• Patent FR-726288, applied in 1931, by Firme G. Rau, G. Rau. Fermaglio.

• Patent US-1860853, applied in 1930, by William R. Cuthbert, W. A. Sheaffer Pen Company. Pernio stiloforo.

• Patent US-D087067, applied in 1932, by Aaron Kolber, Diamond Point Pen Company. Corpo penna.

• Patent GB-373756, applied in 1931, by Robert Jasper Knowles, Swan. Boccetta di inchiostro.

• Patent GB-374274, applied in 1930, by Yves Zuber, Stylomine. Sistema di caricamento.

• Patent US-1862586, applied in 1929, by George Stewart Vivian, Ford Patent Pen. Sistema di caricamento.

• Patent US-1863016, applied in 1929, by Henry Krause, Chilton. Montaggio fermaglio.

• Patent US-1863061, applied in 1930, by Gabriel Larsen, Waterman. Bordo cappuccio Patrician.

• Patent FR-728038, applied in 1930, by Mirko Chelazzi, Dino Frulli, Zerollo. Penna doppia.

• Patent GB-375457, applied in 1931, by George Stewart Vivian, Ford Patent Pen. Sistema di caricamento.

• Patent GB-375458, applied in 1931, by George Stewart Vivian, Ford Patent Pen. Sistema di caricamento.

• Patent US-1916808, applied in 1931, by Kenneth S. Parker, The Parker Pen Company. Base stiloforo.

• Patent US-1867801, applied in 1931, by Andreas Bienenstein, William Douglas, Conklin Pen Manufacturing Co.. Boccetta di inchiostro.

• Patent US-1867932, applied in 1927, by Carl W. Gronemann et al, Wahl Eversharp. Processo produttivo pennini.

• Patent US-1868257, applied in 1930, by Salomon M. Sager, Sager. Caricamento a siringa rovesciata.

• Patent US-D087378, applied in 1930, by Robert Back, Wahl Eversharp. Fermaglio Doric.

• Patent FR-729691, applied in 1931, by Arthur Gilbert, Mentmore. Pennino in acciaio.

• Patent US-1869950, applied in 1931, by Harry E. Waldron, W. A. Sheaffer Pen Company. Pennino Feathertouch.

• Patent FR-730165, applied in 1931, by Firme G. Rau, Météore - La Plume d'Or, Uneman, G. Rau. Progetto della Pullman/Uneman.

• Patent FR-730201, applied in 1931, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Progetto della Pullman/Uneman.

• Patent US-D087523, applied in 1932, by David Kahn, Wearever. Corpo penna.

• Patent US-D087524, applied in 1932, by David Kahn, Wearever. Corpo penna.

• Patent US-D087525, applied in 1932, by David Kahn, Wearever. Matita meccanica.

• Patent DE-556766, applied in 1928, by George Sweetser, Mentmore. Sistema di caricamento.

• Patent US-1872064, applied in 1929, by William R. Cuthbert, W. A. Sheaffer Pen Company. Montaggio fermaglio.

• Patent US-1872151, applied in 1931, by William H. Lindemon, W. A. Sheaffer Pen Company. Puntale matita meccanica.

• Patent US-1876151, applied in 1929, by Salomon M. Sager, Sager. Penna a punta tripla.

• Patent US-1876152, applied in 1929, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Bottiglia ermetica Safety Skrip.

• Patent US-1876197, applied in 1929, by Gerald L. Bassett, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent US-1876298, applied in 1931, by John A. Holland, John Holland Pen Company. Sistema di caricamento.

• Patent US-1876698, applied in 1929, by Gabriel Larsen, Waterman. Matita meccanica.

• Patent GB-380267, applied in 1931, by Kabushiki Kaisha Namiki Seisakusho, Pilot. Stiloforo a supporto magnetico.

• Patent US-D087792, applied in 1931, by Russel C. Parker, The Parker Pen Company. Corpo penna.

• Patent FR-732570, applied in 1932, Pilot. Produzione inchiostro.

• Patent DE-560426, applied in 1931, by Giuseppe Tibaldi, Tibaldi. Caricamento a pulsante di fondo.

• Patent DE-560539, applied in 1930, by Firme G. Rau, G. Rau. Fermaglio.

• Patent US-1882644, applied in 1930, by Louis H. Juster, Waterman. Alimentatore Tip-Fill.

• Patent US-1882780, applied in 1930, by Arthur O. Dahlberg, The Parker Pen Company. Montaggio pennino.

• Patent US-1883160, applied in 1929, by Henry J. Upton, Chilton. Caricamento pneumatico.

• Patent FR-734273, applied in 1931, Swan. Boccetta di inchiostro.

• Patent FR-734996, applied in 1932, by Lous Moratille, Edacoto. Calamaio inchiostro.

• Patent US-1885862, applied in 1931, by Salomon M. Sager, Sager. Pennino e alimentatore.

• Patent US-1886307, applied in 1930, by Salomon M. Sager, Sager. Sezione.

• Patent CA-327288, applied in 1931, by Eugenio Verga, Swan, Columbus. Caricamento a cucchiaio.

• Patent US-D088299, applied in 1932, by David Kahn, Wearever. Corpo penna.

• Patent DE-565366, applied in 1931, Fend. Sistema di caricamento.

• Patent FR-737250, applied in 1932, by Ourest Pousino, Unbranded. Sistema di caricamento.

• Patent DE-566195, applied in 1930, Günther Wagner - Pelikan. Boccetta inchiostro.

• Patent FR-737930, applied in 1931, by Yves Zuber, Stylomine. Caricamento a pompetta e pennino rientrante.

• Patent US-1892145, applied in 1930, by Walter E. Guyot, The Parker Pen Company. Matita meccanica.

• Patent US-1892181, applied in 1932, by Ivan D. Tefft, The Parker Pen Company. Base pseudo stiloforo.

• Patent US-1892369, applied in 1931, by Giuseppe Tibaldi, Tibaldi. Caricamento a pulsante di fondo.

• Patent US-1892499, applied in 1926, by Horace L. Blackman, Pen Desk Set Company. Bocchetta stiloforo.

• Patent US-1892509, applied in 1927, by Walter E. Guyot, Pen Desk Set Company. Base stiloforo.

• Patent US-1892523, applied in 1927, by Alexander Innes Ferrier, Pen Desk Set Company. Base stiloforo.

• Patent US-1892524, applied in 1929, by Alexander Innes Ferrier, Pen Desk Set Company. Base stiloforo.

• Patent US-D088821, applied in 1932, by Joseph B. Platt, Ivan D. Tefft, The Parker Pen Company. Fermaglio (a freccia).

• Patent GB-385403, applied in 1931, by Giuseppe Tibaldi, Tibaldi. Caricamento a pulsante di fondo.

1933

• Patent US-1893130, applied in 1930, by Mirko Chelazzi, Dino Frulli, Zerollo. Penna doppia.

• Patent FR-739163, applied in 1932, Edacoto. Sistema di caricamento.

• Patent US-1893534, applied in 1930, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent US-1895736, applied in 1932, by Julius L. Schnell, Schnell. Sistema di caricamento.

• Patent DE-570012, applied in 1931, by Josef C. Lamy, Lamy. Combo stilo/matita.

• Patent GB-387844, applied in 1932, by Kabushiki Kaisha Namiki Seisakusho, Pilot. Produzione inchiostro.

• Patent US-1898342, applied in 1929, by William R. Cuthbert, W. A. Sheaffer Pen Company. Bottiglia ermetica Safety Skrip.

• Patent US-1900669, applied in 1929, by Craig R. Sheaffer, William R. Cuthbert, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-D089449, applied in 1932, by Russel C. Parker, The Parker Pen Company. Corpo penna Vacumatic.

• Patent US-1902091, applied in 1929, by Oscar F. Nilsson, Joseph Bachrach, Waterman. Calamaio.

• Patent US-1902208, applied in 1926, by Robert Back, Glenn A. Cooper, Pen Desk Set Company. Base stiloforo.

• Patent US-1902573, applied in 1929, by Samuel A. Neidich, Unbranded. Tubi di celluloide variegata.

• Patent US-1902633, applied in 1931, by William J. Foley, Chilton. Caricamento pneumatico.

• Patent US-1902782, applied in 1931, by Theodor Kovacs, Günther Wagner - Pelikan. Pennino per il Graphos.

• Patent US-1902809, applied in 1930, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Caricamento a stantuffo.

• Patent US-1902810, applied in 1931, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Caricamento a stantuffo.

• Patent US-1902811, applied in 1932, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Caricamento a stantuffo.

• Patent US-1903022, applied in 1931, by Gerald L. Bassett, Conklin Pen Manufacturing Co.. Caricamento a stantuffo.

• Patent DE-573413, applied in 1931, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman.

• Patent DE-574150, applied in 1930, Heintze & Blanckertz. Pennino da intinzione.

• Patent GB-390585, applied in 1932, by Edward Stephen Sears, Swan. Caricamento leverless.

• Patent GB-451275, applied in 1934, by Edward Stephen Sears, Swan. Caricamento Visofil.

• Patent US-1904212, applied in 1932, by Harry Esterow, Ideal Metal Products. Montaggio fermaglio.

• Patent US-1904358, applied in 1933, by Arthur O. Dahlberg, The Parker Pen Company. Caricamento Vacumatic.

• Patent US-1905920, applied in 1931, by William H. Lindemon, W. A. Sheaffer Pen Company. Matita per combo.

• Patent US-1907626, applied in 1931, Inkograph. Sistema di visualizzazione del livello di inchiostro.

• Patent US-1908123, applied in 1929, by William R. Cuthbert, W. A. Sheaffer Pen Company. Alimentatore.

• Patent US-1908384, applied in 1931, by George Stewart Vivian, Ford Patent Pen. Serbatoio trasparente.

• Patent US-D089815, applied in 1932, by Ivan D. Tefft, The Parker Pen Company. Corpo penna Parkette.

• Patent US-1909194, applied in 1931, Inkograph. Sistema di visualizzazione del livello di inchiostro.

• Patent US-1909795, applied in 1930, by Bjorn Andersen, Carsten Lyng, Unbranded. Rivestimento metallico.

• Patent US-D089939, applied in 1932, by Henry H. Soper, Waterman. Tappo bottiglia inchiostro.

• Patent GB-392482, applied in 1931, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman.

• Patent US-1910907, applied in 1932, by Abraham Schlosser, Wahl Eversharp. Sistema di caricamento.

• Patent DE-577248, applied in 1931, by Firme G. Rau, G. Rau. Fermaglio.

• Patent US-1912774, applied in 1933, by Russel B. Kingman, Camel. Penna a inchiostro solubile.

• Patent US-D090117, applied in 1932, by Gabriel Larsen, Waterman. Fermaglio Waterman 32V.

• Patent US-1915338, applied in 1932, by Gustav J. Sengbusch, Sengbusch Self-Closing Inkstand. Stiloforo ad intinzione.

• Patent CH-162422, applied in 1931, Swan. Boccetta di inchiostro.

• Patent US-1916199, applied in 1932, by Robert Back, Wahl Eversharp. Mine quadrate Square Leads.

• Patent US-1917185, applied in 1932, by Milford G. Sypher, Chilton. Costruzione della sezione.

• Patent US-1917423, applied in 1930, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Base stiloforo.

• Patent US-1917568, applied in 1929, by Benjamin F. Wupper, The Parker Pen Company. Sistema di caricamento.

• Patent US-1918239, applied in 1931, by Leon H. Ashmore, Esterbrook. Pennino intercambiabile.

• Patent US-1918404, applied in 1931, by Theodor Kovacs, Günther Wagner - Pelikan. Caricamento a stantuffo.

• Patent US-1920409, applied in 1931, by William H. Lindemon, Mark G. Lammers, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-1920770, applied in 1931, by Ivan D. Tefft, Kenneth S. Parker, The Parker Pen Company. Matita meccanica.

• Patent DE-581704, applied in 1932, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman.

• Patent FR-750406, applied in 1932, Météore - La Plume d'Or. Boccetta con innesto penna.

• Patent FR-750689, applied in 1932, by Yves Zuber, Stylomine. Stilografica a pennino coperto.

• Patent GB-396879, applied in 1932, by Andrew Stuart Horn, Unbranded. Incastro sezione o fondello.

• Patent DE-582622, applied in 1932, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman/Uneman.

• Patent FR-750757, applied in 1932, by Firme G. Rau, Météore - La Plume d'Or, Uneman, G. Rau. Progetto della Pullman/Uneman.

• Patent US-1923269, applied in 1930, by Gabriel Larsen, Waterman. Montaggio fermaglio.

• Patent US-1923734, applied in 1931, by Henry Krause, Chilton. Pernio stiloforo.

• Patent GB-397736, applied in 1930, by Mirko Chelazzi, Dino Frulli, Zerollo. Penna doppia.

• Patent US-1926405, applied in 1931, by Henry H. Polk Jr., W. A. Sheaffer Pen Company. Caricamento Vacuum-Fil.

• Patent US-1926852, applied in 1932, by Benjamin W. Hanle, Eagle. Montaggio fermaglio.

• Patent GB-479937, applied in 1932, by Frederick Charles Bina, Francis Frederick Barrey, Swan. Matita meccanica.

• Patent US-1931138, applied in 1933, by William A. Staff, Unbranded. Portamatita aggiustabile.

• Patent US-1932248, applied in 1931, by Carl S. Miner, Galen H. Sayler, The Parker Pen Company. Inchiostro ad essiccazione rapida.

• Patent US-1932765, applied in 1930, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Bottiglia di inchiostro.

• Patent US-1935010, applied in 1928, by Daniel V. Bowen, Charles W. Douglas, Waterman. Base stiloforo.

• Patent US-1935011, applied in 1931, by Daniel V. Bowen, Waterman. Base stiloforo.

• Patent US-1937107, applied in 1933, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Sistema di caricamento.

• Patent DE-588550, applied in 1932, Swan. Caricamento leverless.

• Patent DE-589001, applied in 1931, by Firma G. Rau, Météore - La Plume d'Or, Uneman, G. Rau. Precursore della Pullman.

• Patent US-1939199, applied in 1933, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Fermaglio a molla.

• Patent US-1939753, applied in 1928, by Edward S. Wood, Esterbrook. Pennino intercambiabile.

• Patent US-1940223, applied in 1931, by Lucifer J. Most, Unbranded. Estensione barre celluloide.

1934

• Patent US-1943048, applied in 1933, by Joseph Wallace, Inkograph. Finestra trasparente.

• Patent DE-590795, applied in 1931, by Firme G. Rau, G. Rau. Fermaglio.

• Patent US-1944927, applied in 1929, by William R. Cuthbert, W. A. Sheaffer Pen Company. Costruzione stiloforo.

• Patent FR-759525, applied in 1932, by Yves Zuber, Stylomine. Compensazione flusso inchiostro.

• Patent US-1947092, applied in 1933, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent GB-406073, applied in 1932, by Lionel Gunsberg, Lang - Curzon - Summit. Calamaio.

• Patent US-1950364, applied in 1932, by William E. Moore, The Parker Pen Company. Alimentatore spear-head.

• Patent US-D091765, applied in 1933, by Seth Chilton Crocker, Chilton. Fermaglio.

• Patent US-1954952, applied in 1932, by Edward Stephen Sears, Swan. Caricamento leverless.

• Patent US-1956084, applied in 1931, by Ivan D. Tefft, The Parker Pen Company. Base stiloforo.

• Patent GB-409074, applied in 1932, by Ernest M. Wade, Lang - Curzon - Summit. Matita meccanica.

• Patent US-1957677, applied in 1932, by Henry F. Soper, Edgar P. Sparks, Waterman. Bottiglia di inchiostro.

• Patent US-D092212, applied in 1934, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Celluloide abalone.

• Patent CA-341601, applied in 1932, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman/Uneman.

• Patent US-RE19167, applied in 1934, by Henry H. Polk Jr., W. A. Sheaffer Pen Company. Caricamento Vacuum-Fil.

• Patent GB-410437, applied in 1933, by Kabushiki Kaisha Namiki Seisakusho, Pilot. Caricamento a siringa rovesciata.

• Patent US-1959959, applied in 1929, by Theodor Kovacs, Günther Wagner - Pelikan. Calamaio portatile.

• Patent FR-764523, applied in 1933, Pilot. Alimentatore.

• Patent DE-569824, applied in 1931, by August Leistenschneider, Montblanc. Matita meccanica.

• Patent FR-764787, applied in 1933, by Louis Badois, Météore - La Plume d'Or. Calamaio a pressione.

• Patent US-1963261, applied in 1933, by William R. Cuthbert, W. A. Sheaffer Pen Company. Tappo boccetta inchiostro.

• Patent FR-766107, applied in 1933, Pilot. Caricamento a siringa rovesciata.

• Patent US-1964125, applied in 1932, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Precursore della Pullman/Uneman.

• Patent GB-412286, applied in 1932, by William Livsey, Lang - Curzon - Summit. Matita meccanica.

• Patent BE-403084, applied in 1933, Gimborn. Bottiglia di inchiostro.

• Patent GB-412610, applied in 1932, by Edward S. Wood, Leon H. Ashmore, Esterbrook. Pennino intercambiabile.

• Patent US-1964821, applied in 1933, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent US-1965626, applied in 1934, by Gerald L. Bassett, Conklin Pen Manufacturing Co.. Caricamento a stantuffo.

• Patent US-1966369, applied in 1934, by Steven G. Yates, David Kahn, Wearever. Sistema di caricamento.

• Patent US-D092817, applied in 1934, by Charles K. Lovejoy, Moore Pen Company. Fermaglio.

• Patent US-1967580, applied in 1933, by Gabriel Larsen, Waterman. Sistema di caricamento.

• Patent US-1968567, applied in 1933, by Lucifer J. Most, Swan. Sistema di caricamento.

• Patent GB-414250, applied in 1933, by Andrew Stuart Horn, Unbranded. Pennino.

• Patent GB-414929, applied in 1933, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Caricamento a pompetta.

• Patent US-1972395, applied in 1931, by Galen H. Sayler, The Parker Pen Company. Inchiostro ad essiccazione rapida.

• Patent GB-416648, applied in 1934, by Mark Sydney Finburgh, Wyvern Fountain Pen Company. Sistema di caricamento.

• Patent DE-602807, applied in 1932, Montblanc. Macchina per incisioni.

• Patent DE-602919, applied in 1933, Montblanc. Macchina per incisioni.

• Patent GB-417546, applied in 1933, The Parker Pen Company. Caricamento Vacumatic.

• Patent US-1975775, applied in 1932, by Leon H. Ashmore, Esterbrook. Fermaglio a V.

• Patent US-1977527, applied in 1934, by Herman Pohle, Unbranded. Penna multipla.

• Patent US-1978675, applied in 1934, by Russel B. Kingman, Daniel J. Mayer, Camel. Penna con inchiostro solubile.

• Patent US-1978676, applied in 1934, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent GB-418734, applied in 1934, by David Finburgh, Wyvern Fountain Pen Company. Sezione con pennino ed alimentatore a vite.

• Patent US-1980159, applied in 1933, by Robert Back, Wahl Eversharp. Pennino Adjustable Point.

• Patent US-1980508, applied in 1932, by Ivan D. Tefft, The Parker Pen Company. Caricamento Vacumatic.

• Patent US-D093807, applied in 1934, by Robert Back, Wahl Eversharp. Stiloforo Doric.

• Patent GB-420064, applied in 1934, by Mark Sydney Finburgh, Wyvern Fountain Pen Company. Montaggio pennino.

• Patent GB-420164, applied in 1933, by Andrew Stuart Horn, Unbranded. Montaggio clip.

• Patent US-1983682, applied in 1934, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Caricamento Vacuum-Fil.

• Patent NL-34348C, applied in 1933, Gimborn. Bottiglia di inchiostro.

• Patent FR-774950, applied in 1933, Paillard. Alimentatore.

• Patent US-1985643, applied in 1934, by Carl Pfanstiehl, The Parker Pen Company. Caricamento Vacumatic.

• Patent US-D094118, applied in 1934, by Seth Chilton Crocker, Chilton. Corpo penna.

1935

• Patent US-1986372, applied in 1933, Unbranded. Caricamento a cartuccia.

• Patent US-1988878, applied in 1933, by Emanuel J. Sonn, Unbranded. Sistema di caricamento.

• Patent US-D094375, applied in 1934, by Robert Back, Wahl Eversharp. Corpo penna Doric.

• Patent US-1989220, applied in 1934, by Norman E. Weigel, Wearever. Costruzione pennino.

• Patent US-1989351, applied in 1934, by Lucius A. Crowell, The Parker Pen Company. Celluloide anellata.

• Patent US-1989990, applied in 1933, by Charles R. Keeran, Wahl Eversharp. Sistema di caricamento.

• Patent US-1990441, applied in 1933, by Albert H. Stenersen, Wahl Eversharp. Sistema di caricamento.

• Patent GB-424069, applied in 1933, by James Jeff, Conway Stewart. Matita meccanica.

• Patent DE-610352, applied in 1932, Montblanc. Tappo boccetta inchiostro.

• Patent US-D094983, applied in 1934, by Louis Morrison, Morrison. Corpo penna con fermaglio.

• Patent US-RE19530, applied in 1935, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Caricamento Vacuum-Fil.

• Patent US-1998930, applied in 1934, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent US-1999177, applied in 1933, by Leon H. Ashmore, Esterbrook. Pennino intercambiabile.

• Patent US-1999966, applied in 1933, by José Andrés y Hernandez, Unbranded. Fermaglio di sicurezza.

• Patent US-2002092, applied in 1934, by Louis H. Juster, Waterman. Calamaio.

• Patent US-2003479, applied in 1934, by Herbert L. Carman, Swan. Sistema di caricamento.

• Patent US-D095882, applied in 1934, by Norman E. Weigel, Wearever. Costruzione del pennino.

• Patent US-2004641, applied in 1934, by Roger Blomley Watson, Waterman. Levetta snodabile.

• Patent US-D095938, applied in 1935, by Milford G. Sypher, Chilton. Fermaglio Wing-flow.

• Patent US-D096022, applied in 1935, by William R. Cuthbert, W. A. Sheaffer Pen Company. Matita meccanica Balance.

• Patent US-D096023, applied in 1935, by William R. Cuthbert, W. A. Sheaffer Pen Company. Corpo penna della Balance.

• Patent US-D095860, applied in 1935, by Max M. Neuhoff, Unbranded. Pennino.

• Patent US-2007576, applied in 1934, by Charles K. Lovejoy, Moore Pen Company. Sistema di caricamento.

• Patent GB-432142, applied in 1933, Gimborn. Bottiglia di inchiostro.

• Patent FR-784223, applied in 1934, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Progetto della Pullman.

• Patent US-2009182, applied in 1931, by Julius Kahn, Wearever. Matita meccanica.

• Patent DE-616460, applied in 1933, Fabbrica Italiana Penne a Serbatoio Aurora. Meccanismo della Asterope.

• Patent US-2011040, applied in 1935, by William R. Cuthbert, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent US-2011222, applied in 1934, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent US-2011516, applied in 1933, by Hugo A. Funk, Unbranded. Penna a pennino economico.

• Patent FR-786080, applied in 1935, Edacoto. Matita meccanica.

• Patent US-2012722, applied in 1934, by Henry Krause, Chilton. Pennino intercambiabile.

• Patent BE-410533, applied in 1934, by Mark Sydney Finburgh, Wyvern Fountain Pen Company. Montaggio pennino.

• Patent US-2014150, applied in 1931, by Albert H. Stenersen, Wahl Eversharp. Macchina per celluloide a stampo.

• Patent GB-435065, applied in 1934, by Andrew Stuart Horn, Unbranded. Alimentatore.

• Patent US-D096888, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-D096889, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-D096890, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-D096891, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-D096892, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-D096914, applied in 1935, by John Hill, Waterman. Celluloide "ray" design.

• Patent GB-435482, applied in 1934, by Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent US-2016106, applied in 1932, by Arthur O. Dahlberg, The Parker Pen Company. Pennino intercambiabile.

• Patent US-2017109, applied in 1932, by Milford G. Sypher, Chilton. Caricamento pneumatico.

• Patent US-2017110, applied in 1932, by Henry J. Upton, Chilton. Caricamento pneumatico.

• Patent US-D097174, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Corpo penna Nozac.

• Patent US-2019734, applied in 1934, by Salomon M. Sager, Sager. Pennino centrale.

• Patent AT-143783, applied in 1934, Météore - La Plume d'Or, Uneman. Progetto della Pullman.

• Patent US-2022416, applied in 1935, by Benjamin W. Hanle, Eagle. Montaggio fermaglio.

• Patent GB-439182, applied in 1934, by Arthur E. Andrews, Henry S. Bailey, Mentmore. Sistema di caricamento.

• Patent US-D097681, applied in 1935, by Gabriel Larsen, Waterman. Boccetta inchiostro.

• Patent US-2024229, applied in 1935, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent US-2025110, applied in 1934, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

1936

• Patent IT-342950, applied in 2024, Officine Meccaniche Armando Simoni. Brevetto caricamento stantuffo tuffante.

• Patent FR-792631, applied in 1934, by Mark Sydney Finburgh, Wyvern Fountain Pen Company. Montaggio pennino.

• Patent US-D098255, applied in 1935, by David Kahn, Wearever. Fermaglio.

• Patent US-2028855, applied in 1934, by Arthur Winter, Hicks, Dictator. Matita meccanica.

• Patent GB-442262, applied in 1935, by William Livsey, Stephens, Lang - Curzon - Summit. Sistema di caricamento in stile push-knob.

• Patent US-2030452, applied in 1935, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent US-D098560, applied in 1935, by Arthur Winter, Dictator. Stilografica.

• Patent DE-625889, applied in 1935, Kaweco. Alimentatore.

• Patent US-2031343, applied in 1934, by Ivan D. Tefft, The Parker Pen Company. Variante caricamento vacumatic.

• Patent FR-795155, applied in 1935, Paillard. Alimentatore.

• Patent US-2033164, applied in 1935, by George S. Walter, Unbranded. Penna a stilo.

• Patent US-D098958, applied in 1935, by Theodore J. Piazzoli, Waterman. Boccetta inchiostro.

• Patent US-2035225, applied in 1935, by Harry Esterow, Ideal Metal Products. Matita meccanica.

• Patent US-2035278, applied in 1934, by Salomon M. Sager, Sager. Caricamento a sfiatatoio.

• Patent US-2035372, applied in 1934, by David F. Mohns, The Parker Pen Company. Caricamento a siringa rovesciata.

• Patent US-2035378, applied in 1934, by Galen H. Sayler, The Parker Pen Company. Montaggio sezione Vacumatic.

• Patent US-D099183, applied in 1934, by William Bowker, Rene P. Piperoux, Unbranded. Corpo e cappuccio.

• Patent US-D099218, applied in 1935, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Corpo penna della Balance.

• Patent US-2037177, applied in 1934, by Nathan W. Paquette, The Parker Pen Company. Variante caricamento vacumatic.

• Patent US-D099262, applied in 1935, by Andreas Bienenstein, Conklin Pen Manufacturing Co.. Fermaglio Nozac.

• Patent GB-445752, applied in 1934, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Progetto della Pullman.

• Patent US-2037699, applied in 1934, by Leon H. Ashmore, Esterbrook. Pennino economico.

• Patent US-2040999, applied in 1935, by Lloyd A. Kelley, Conklin Pen Manufacturing Co.. Caricamento a siringa rovesciata.

• Patent FR-799290, applied in 1935, by Robert Jean Jacques Hallauer, Edacoto. Matita meccanica.

• Patent CA-358526, applied in 1935, by William Bain Dilly, Eclipse. Sistema di caricamento.

• Patent GB-450343, applied in 1935, by Kabushiki Kaisha Namiki Seisakusho, Pilot. Caricamento a siringa rovesciata.

• Patent US-2048127, applied in 1935, by Gabriel Larsen, Waterman. Montaggio clip.

• Patent GB-451167, applied in 1935, by Heinrich Hebborn, Heinrich Schlicksupp, Luxor. Caricamento a stantuffo telescopico.

• Patent GB-451168, applied in 1935, by Heinrich Hebborn, Heinrich Schlicksupp, Luxor. Caricamento a stantuffo telescopico.

• Patent US-2051337, applied in 1933, by Andrew Stuart Horn, Unbranded. Pennino.

• Patent DE-634140, applied in 1933, by Ernst Rösler, Montblanc. Sistema di caricamento.

• Patent US-D100962, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100963, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100964, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100965, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100966, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100967, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100968, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100969, applied in 1935, by Edward F. Molyneux, Chilton. Corpo penna Wing-flow.

• Patent US-D100970, applied in 1936, by Milford G. Sypher, Chilton. Corpo penna Wing-flow.

• Patent US-D101042, applied in 1936, by David Kahn, Wearever. Fermaglio.

• Patent FR-802455, applied in 1936, Edacoto. Matita meccanica.

• Patent GB-454040, applied in 1935, by Andrew Stuart Horn, Unbranded. Alimentatore con sfiatatoio.

• Patent US-2056055, applied in 1934, by Edward Stephen Sears, Swan. Caricamento Visofil.

• Patent CH-186582, applied in 1934, Météore - La Plume d'Or, Uneman. Progetto della Pullman.

• Patent US-2059577, applied in 1934, by Benjamin W. Hanle, Eagle. Penna in celluloide.

• Patent DE-638176, applied in 1935, Mars Staedtler. Caricamento a stantuffo.

• Patent US-2061405, applied in 1936, by Russel B. Kingman, Ralf L. Hartwell, Camel. Penna con inchiostro solubile.

• Patent GB-456888, applied in 1936, by Alec Finburgh et al, Wyvern Fountain Pen Company. Testina pubblicitaria.

• Patent GB-457212, applied in 1935, by William F. Johnson, Mentmore. Sistema di caricamento.

• Patent FR-805654, applied in 1935, by Charles Abel, Unbranded. Fermaglio a molla.

• Patent DE-639697, applied in 1935, Mars Staedtler. Caricamento a stantuffo.

1937

• Patent FR-807275, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent US-D102720, applied in 1936, by Gabriel Larsen, Waterman. Lady Patricia Ink-Vue.

• Patent US-2068419, applied in 1936, by Gabriel Larsen, Waterman. Caricamento Ink-Vue.

• Patent FR-807679, applied in 1935, by Vaclav Klimes, Paul Eisner, Unbranded. Penna a sfera.

• Patent DE-641120, applied in 1933, by Ernst Rösler, Montblanc. Sistema di caricamento.

• Patent DE-641585, applied in 1933, by Adolf Bargeboer, Gimborn. Boccetta di inchiostro.

• Patent US-2070461, applied in 1935, by Asahi Watanabe, Pilot. Caricamento a siringa rovesciata.

• Patent US-D102799, applied in 1936, by Kenneth S. Parker, The Parker Pen Company. Corpo penna.

• Patent US-D102800, applied in 1936, by Kenneth S. Parker, The Parker Pen Company. Corpo penna.

• Patent US-D102801, applied in 1936, by Kenneth S. Parker, The Parker Pen Company. Corpo penna.

• Patent US-2072711, applied in 1935, by William R. Cuthbert, William H. Lindemon, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent US-D103402, applied in 1936, by Alfonso Iannelli, Wahl Eversharp. Matita meccanica Coronet.

• Patent US-D103403, applied in 1936, by Alfonso Iannelli, Wahl Eversharp. Matita meccanica Coronet.

• Patent US-2075725, applied in 1935, by David Kahn, Wearever. Matita meccanica.

• Patent US-D103813, applied in 1937, by Harry Esterow, Ideal Metal Products. Fermaglio.

• Patent US-2075828, applied in 1935, by Archie D. Robinson, Unbranded. Innesto pennino.

• Patent DE-643438, applied in 1936, by Gregor Miltner, Osmia. Sistema di caricamento.

• Patent US-2076796, applied in 1931, by Gerald L. Bassett et al, Conklin Pen Manufacturing Co.. Cappuccio a stampo.

• Patent US-2076997, applied in 1935, by William Livsey, Stephens, Lang - Curzon - Summit. Sistema di caricamento.

• Patent FR-811398, applied in 1935, Paillard. Boccetta inchiostro.

• Patent DK-52984, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent US-2078083, applied in 1935, by Gabriel Larsen, Waterman. Lavorazione fusto.

• Patent US-2078433, applied in 1935, by Arthur Winter, Dictator. Matita meccanica.

• Patent US-D104263, applied in 1937, by George C. Holt, W. A. Sheaffer Pen Company. Penna corta a corpo/cappuccio.

• Patent US-2080372, applied in 1934, by Konrad Kressel, Montblanc. Matita meccanica.

• Patent FR-812667, applied in 1936, Stylomine. Matita meccanica.

• Patent FR-812666, applied in 1936, Stylomine. Matita meccanica.

• Patent GB-466012, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent DE-645085, applied in 1934, by Mark Sydney Finburgh, Wyvern Fountain Pen Company. Montaggio pennino.

• Patent US-2081538, applied in 1934, by Fred J. Hoarle, W. A. Sheaffer Pen Company. Celluloide variegata.

• Patent CA-366351, applied in 1934, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Progetto della Pullman.

• Patent US-D104686, applied in 1936, by Alfonso Iannelli, Wahl Eversharp. Fermaglio Coronet.

• Patent US-D104687, applied in 1937, by Alfonso Iannelli, Wahl Eversharp. Fermaglio stile Coronet.

• Patent AT-149872, applied in 1935, Luxor. Caricamento a stantuffo telescopico.

• Patent FR-814135, applied in 1936, by Robert Jean Jacques Hallauer, Edacoto. Caricamento a cartuccia.

• Patent US-D105022, applied in 1936, by Gabriel Larsen, Waterman. Finestra semitrasparente Lady Patricia.

• Patent US-D105150, applied in 1937, by Milford G. Sypher, Chilton. Corpo penna Wing-flow.

• Patent US-2087672, applied in 1935, by Gabriel Larsen, Henry N. Briechle, Waterman. Caricamento Ink-Vue.

• Patent GB-469484, applied in 1936, by Henry Frederick Charles Burnham, Henry Charles William Burnham, Burnham. Caricamento a torsione.

• Patent GB-469496, applied in 1936, by William Livsey, Stephens, Lang - Curzon - Summit. Sistema di caricamento.

• Patent GB-469699, applied in 1936, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Sezione semitrasparente.

• Patent US-2089449, applied in 1935, by Milford G. Sypher, Chilton. Pennino alato Wing-flow.

• Patent FR-816837, applied in 1936, Paillard. Calamaio per rientranti.

• Patent US-2091648, applied in 1936, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Caricamento Vacumatic.

• Patent US-2091649, applied in 1936, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Caricamento Vacumatic.

• Patent BE-422774, applied in 1937, by William F. Johnson, Mentmore. Alimentatore.

• Patent US-2092459, applied in 1934, by Leopold Kutter, Météore - La Plume d'Or, Uneman. Progetto della Pullman.

• Patent GB-471612, applied in 1936, by Edward G. Knight, De La Rue - Onoto. Sistema di caricamento.

• Patent US-2093701, applied in 1935, by Jaroslav Zahel, Unbranded. Sistema di caricamento.

• Patent US-2093919, applied in 1936, by Reinhold Lotterer, Wearever. Matita meccanica.

• Patent GB-472380, applied in 1937, by David Finburgh, Alec Finburgh, Wyvern Fountain Pen Company. Matita meccanica.

• Patent FR-818824, applied in 1936, Unbranded. Sistema di caricamento.

• Patent US-2094796, applied in 1936, by David Kahn, Wearever. Fermaglio con iniziali.

• Patent US-2094797, applied in 1936, by David Kahn, Wearever. Fermaglio con iniziali.

• Patent US-D106326, applied in 1937, by Paul M. Ressinger, The Parker Pen Company. Corpo penna Royal Challenger.

• Patent US-D106407, applied in 1936, by David Kahn, Wearever. Fermaglio con iniziali.

• Patent GB-473481, applied in 1937, by Arthur Stanley Jones, Conway Stewart. Caricamento a stantuffo telescopico.

• Patent US-2096044, applied in 1936, by Roy B. Johns, The Parker Pen Company. Rivestimento fusto in celluloide.

• Patent DE-652024, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent US-2096708, applied in 1935, by William R. Cuthbert, W. A. Sheaffer Pen Company. Blocco afflusso inchiostro.

• Patent US-D106701, applied in 1936, by Robert Back, Wahl Eversharp. Corpo penna Pacemaker.

• Patent DE-652290, applied in 1935, Montblanc. Boccetta di inchiostro.

• Patent DE-652405, applied in 1936, Montblanc. Fusto semitrasparente.

• Patent CH-193646, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent GB-474736, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent GB-474893, applied in 1937, by Leslie William Johnson, Edward Stephen Sears, Swan. Penna a stilo.

• Patent US-2099126, applied in 1935, by Gabriel Larsen, Waterman. Fusto semitrasparente.

• Patent CH-194208, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent GB-475970, applied in 1936, by William F. Johnson, Mentmore. Sistema di caricamento.

• Patent US-2101304, applied in 1936, by Howard S. Wright, W. A. Sheaffer Pen Company. Blocco afflusso inchiostro.

• Patent US-2102044, applied in 1934, by Milford G. Sypher, Chilton. Fermaglio e cappuccio Lox-Top.

• Patent GB-476971, applied in 1935, by Vaclav Klimes, Unbranded. Penna a sfera.

• Patent US-D107708, applied in 1937, by Paul M. Ressinger, Ivan D. Tefft, The Parker Pen Company. Fermaglio Royal Challenger.

• Patent BE-424772, applied in 1936, by Robert Jean Jacques Hallauer, Edacoto. Caricamento a cartuccia.

1938

• Patent US-2104638, applied in 1936, by William R. Cuthbert, W. A. Sheaffer Pen Company. Blocco afflusso inchiostro.

• Patent US-2104676, applied in 1936, by Oscar H. Senf, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent FR-822628, applied in 1936, Mentmore. Sistema di caricamento.

• Patent FR-822646, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent FR-822691, applied in 1937, Unic. Sistema di caricamento.

• Patent US-2105049, applied in 1935, by Arthur N. Lungren, Wahl Eversharp. Pennino Adjustable Point.

• Patent US-2105189, applied in 1935, by Benjamin W. Hanle, Eagle. Compensatore pressione.

• Patent US-2105424, applied in 1936, by David Kahn, Wearever. Contenitore per mine.

• Patent GB-478118, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent FR-823477, applied in 1937, Unic. Compensatore pressione.

• Patent GB-478651, applied in 1936, by William F. Johnson, Mentmore. Blocco afflusso inchiostro.

• Patent US-2163515, applied in 1936, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent DE-655438, applied in 1931, Montblanc. Matita meccanica.

• Patent FR-823652, applied in 1936, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent US-2107150, applied in 1935, by William F. Heising, W. A. Sheaffer Pen Company. Alimentatore.

• Patent US-2107162, applied in 1935, by Henry H. Polk Jr., W. A. Sheaffer Pen Company. Alimentatore.

• Patent FR-824697, applied in 1936, Stylomine. Pinza portamine.

• Patent US-2108552, applied in 1936, by Arthur W. Schoneberger, Unbranded. Sistema di caricamento.

• Patent GB-479937, applied in 1936, by Leslie William Johnson, Edward Stephen Sears, Swan. Matita meccanica.

• Patent GB-480717, applied in 1936, by Leslie William Johnson, Edward Stephen Sears, Swan. Matita meccanica.

• Patent US-2110007, applied in 1936, by Ivan D. Tefft, The Parker Pen Company. Base stiloforo.

• Patent GB-480965, applied in 1936, by Leslie William Johnson, Edward Stephen Sears, Swan. Caricamento Visofil.

• Patent US-2110551, applied in 1935, by Robert E. Freidlein, David Juelss, Venus. Matita meccanica.

• Patent US-2110558, applied in 1936, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Blocco afflusso inchiostro.

• Patent US-2110578, applied in 1935, by Aloysius L. Prasch, W. A. Sheaffer Pen Company. Alimentatore.

• Patent US-2111518, applied in 1935, by Joseph Wallace, Inkograph. Banda decorativa.

• Patent GB-482097, applied in 1936, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent FR-826105, applied in 1937, by Kabushikikaisha Namiki Seisaku, Pilot. Caricamento nomikomi-shiki.

• Patent FR-826136, applied in 1937, Pilot. Boccetta per caricamento nomikomi-shiki.

• Patent BE-426288, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent US-2113633, applied in 1937, by Herman K. Stempel, Samuel L. Daugherty, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent NL-43208, applied in 1935, by William Livsey, Stephens, Lang - Curzon - Summit. Sistema di caricamento.

• Patent CH-197313, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent GB-484593, applied in 1936, by Arthur E. Andrews, Mentmore. Sistema di caricamento.

• Patent FR-828489, applied in 1937, Stylomine. Corpo a sezioni trasparenti.

• Patent US-2118241, applied in 1936, by Milford G. Sypher, Chilton. Base stiloforo.

• Patent US-2120059, applied in 1933, by Fred P. Moore, Wahl Eversharp. Sistema di caricamento.

• Patent US-2125957, applied in 1937, by Salomon M. Sager, Sager. Sistema di caricamento.

• Patent US-2120652, applied in 1937, by Julius L. Schnell, Schnell. Cappuccio areato.

• Patent NL-43662, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent DE-661729, applied in 1936, by Gregor Miltner, Osmia. Caricamento a stantuffo.

• Patent GB-487942, applied in 1936, by William F. Johnson, Mentmore. Sistema di caricamento.

• Patent US-2123110, applied in 1936, by William F. Johnson, Mentmore. Sistema di caricamento.

• Patent GB-488541, applied in 1938, by Ryosuke Namiki, Pilot. Caricamento nomikomi-shiki.

• Patent US-2123427, applied in 1935, by Russel B. Kingman, Camel. Penna con inchiostro solubile.

• Patent US-2124771, applied in 1937, by Ned D. Fish, W. A. Sheaffer Pen Company. Scrittoio con boccetta d'inchiostro.

• Patent US-2125957, applied in 1937, by Salomon M. Sager, Sager. Sistema di caricamento.

• Patent GB-490096, applied in 1937, by Ryosuke Namiki, Pilot. Boccetta per caricamento nomikomi-shiki.

• Patent US-2127043, applied in 1936, by Lucifer J. Most, Metal & Controls Corporation. Decorazioni metalliche.

• Patent US-D110896, applied in 1938, by Alfonso Iannelli, Wahl Eversharp. Porta-gomma.

• Patent DE-664007, applied in 1934, Montblanc. Matita meccanica.

• Patent DE-664392, applied in 1936, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent CH-199498, applied in 1936, Edacoto. Caricamento a cartuccia.

• Patent US-2129134, applied in 1936, by William F. Johnson, Mentmore. Alimentatore.

• Patent FR-824603, applied in 1936, Mentmore. Alimentatore.

• Patent US-D110810, applied in 1937, by David Kahn, Wearever. Impugnatura matita triangolare.

• Patent GB-491876, applied in 1937, by William F. Johnson, Mentmore. Alimentatore.

• Patent US-2129655, applied in 1935, by William P. De Witt, De Witt-La France. Matita meccanica.

• Patent US-D111301, applied in 1937, by Ned T. Fish, Max Oehler, W. A. Sheaffer Pen Company. Fermaglio.

• Patent FR-831873, applied in 1937, Météore - La Plume d'Or. Sistema di caricamento.

• Patent US-2132313, applied in 1937, by Ryosuke Namiki, Pilot. Boccetta per caricamento nomikomi-shiki.

• Patent US-2133617, applied in 1937, by Benjamin W. Hanle, Eagle. Caricamento a pulsante di fondo.

• Patent AT-154829, applied in 1935, Luxor. Caricamento a stantuffo telescopico.

• Patent US-2136290, applied in 1935, by Kurt Fend, Fend. Matita meccanica multipla.

• Patent GB-495419, applied in 1937, by Arthur E. Andrews, Mentmore. Matita meccanica.

• Patent GB-495659, applied in 1937, by Edward G. Knight, De La Rue - Onoto. Celluloide semi-trasparente.

• Patent US-D112283, applied in 1938, by Benjamin W. Hanle, Eagle. Decorazione del fusto.

• Patent US-D112401, applied in 1938, by Anatol N. Andrews, Unbranded. Stilografica.

• Patent US-2139045, applied in 1937, by Milford G. Sypher, Chilton. Caricamento pneumatico.

• Patent US-2139084, applied in 1935, by Gabriel Larsen, Waterman. Sistema di caricamento.

• Patent GB-497169, applied in 1937, by Edward G. Knight, De La Rue - Onoto. Celluloide semi-trasparente.

• Patent DE-669115, applied in 1936, by Heinrich Schwarting, Konrad Kressel, Montblanc. Fusto semitrasparente.

• Patent US-2141988, applied in 1937, by David Kahn, Wearever. Fermaglio con iniziali.

• Patent US-2141989, applied in 1937, by Karl Weisser, Wearever. Pipa con iniziali.

• Patent US-2141990, applied in 1937, by David Kahn, Wearever. Fermaglio con iniziali.

• Patent US-2141991, applied in 1938, by David Kahn, Wearever. Fermaglio con iniziali.

1939

• Patent DK-55650C, applied in 1937, Osmia. Fusto penna.

• Patent US-2142531, applied in 1935, by Albert H. Stenersen, Wahl Eversharp. Caricamento a siringa rovesciata.

• Patent US-2142532, applied in 1937, by Albert H. Stenersen, Wahl Eversharp. Meccanismo Ink Shut-off.

• Patent US-2142533, applied in 1934, by Albert H. Stenersen, Wahl Eversharp. Meccanismo Ink Shut-off.

• Patent US-2143601, applied in 1936, by Johannes Iversen, Miller Pen Co.. Sistema di caricamento.

• Patent US-2144296, applied in 1938, by Ryosuke Namiki, Pilot. Caricamento nomikomi-shiki.

• Patent CH-202572, applied in 1937, Soennecken. Pulsante Rheingold.

• Patent US-2148236, applied in 1936, by Benjamin W. Hanle, Eagle. Caricamento a siringa rovesciata.

• Patent FR-837930, applied in 1937, Stylomine. Caricamento a cartuccia.

• Patent US-2148853, applied in 1938, by Homer J. Bessette, LeBoeuf. Caricamento sleeve filler.

• Patent GB-501523, applied in 1937, by George E. Barker, Mentmore. Costruzione fermaglio.

• Patent US-2149557, applied in 1936, by John A. Snodgrass, Unbranded. Stilografica.

• Patent US-2150065, applied in 1937, by David Kahn, Wearever. Base stiloforo.

• Patent DE-672665, applied in 1936, Unbranded. Alimentatore.

• Patent GB-502381, applied in 1937, Montblanc. Caricamento a stantuffo telescopico.

• Patent US-2151548, applied in 1935, by Robert Back, Wahl Eversharp. Costruzione tubi di celluloide.

• Patent US-2152161, applied in 1938, by Milford G. Sypher, Chilton. Intarsi su plastica.

• Patent US-2152436, applied in 1937, by Leon H. Ashmore, Esterbrook. Dispositivo anti-bolle.

• Patent US-2153488, applied in 1937, by Karl Weisser, Wearever. Costruzione fermaglio.

• Patent US-D114095, applied in 1938, by Karl Weisser, Wearever. Fermaglio.

• Patent US-2154102, applied in 1934, by Lucifer J. Most, Metal & Controls Corporation. Costruzione pennini.

• Patent US-2154103, applied in 1935, by Lucifer J. Most, Metal & Controls Corporation. Costruzione pennini.

• Patent US-2156775, applied in 1936, by Zimmer Edward, Wearever. Incastro con iniziali.

• Patent FR-840819, applied in 1938, Itala Cromograf. Penna doppia.

• Patent US-2158615, applied in 1937, by Howard S. Wright, W. A. Sheaffer Pen Company. Alimentatore per Vacuum-Fil.

• Patent FR-841365, applied in 1938, Stylomine. Alimentatore.

• Patent FR-841451, applied in 1938, Bayard. Fusto trasparente.

• Patent US-2159002, applied in 1938, by Leon H. Ashmore, Esterbrook. Pennino economico.

• Patent US-2159003, applied in 1938, by Leon H. Ashmore, Esterbrook. Pennino economico.

• Patent US-2162223, applied in 1937, by Gabriel Larsen, Waterman. Finestra trasparente.

• Patent US-D115544, applied in 1939, by Frank C. Deli, Erik Petau, Autopoint. Fermaglio.

• Patent FR-843941, applied in 1938, Edacoto. Montaggio sezione.

• Patent DE-678716, applied in 1937, by Paul Buschle, Compaktor. Caricamento a sfiatatoio.

• Patent US-D115868, applied in 1938, by Sydney E. Longmaid, Esterbrook. Pennino.

• Patent US-2167815, applied in 1937, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo telescopico.

• Patent US-D116005, applied in 1938, by Leon H. Ashmore, Esterbrook. Fermaglio.

• Patent US-D116097, applied in 1939, by Kenneth S. Parker, Marlin S. Baker, The Parker Pen Company. Corpo penna.

• Patent US-D116098, applied in 1939, by Kenneth S. Parker, Marlin S. Baker, The Parker Pen Company. Corpo penna.

• Patent GB-511521, applied in 1938, by Arthur E. Andrews, Mentmore. Penna a stilo.

• Patent US-2170242, applied in 1936, by Benjamin W. Hanle, Eagle. Caricamento a sfiatatoio.

• Patent DE-680292, applied in 1936, Montblanc. Caricamento a stantuffo telescopico.

• Patent DE-682285, applied in 1937, by Albert Schneider, Soennecken. Fondello bloccabile.

• Patent FR-847613, applied in 1938, Mentmore. Penna a stilo.

• Patent DE-682506, applied in 1937, Osmia. Sistema di caricamento.

• Patent US-2176661, applied in 1939, by Leon H. Ashmore, Esterbrook. Dispositivo anti-bolle.

• Patent US-2177466, applied in 1938, by Herman K. Stempel, W. A. Sheaffer Pen Company. Gomma matita meccanica.

• Patent DE-683548, applied in 1937, by Heinrich Schwarting, Konrad Kressel, Montblanc. Caricamento a stantuffo telescopico.

• Patent GB-514513, applied in 1938, by Leslie William Johnson, Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent US-2179727, applied in 1938, by William George Albert Mckay, Sengbusch Self-Closing Inkstand. Stiloforo ad intinzione.

• Patent US-2180560, applied in 1939, by Herman K. Stempel, W. A. Sheaffer Pen Company. Matita meccanica.

• Patent FR-850525, applied in 1938, Stylomine. Pennino coperto.

1940

• Patent US-2186027, applied in 1935, by David Kahn, Wearever. Matita meccanica.

• Patent US-2186869, applied in 1936, by David Kahn, Wearever. Matita meccanica.

• Patent US-2186870, applied in 1938, by David Kahn, Wearever. Matita meccanica.

• Patent US-2187528, applied in 1937, by Russel T. Wing, The Parker Pen Company. Sezione e alimentatore.

• Patent US-2435123, applied in 1944, by Jozsef Laszlo Biro, Wahl Eversharp. Penna a sfera.

• Patent GB-517388, applied in 1938, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Controcappuccio.

• Patent US-2188662, applied in 1938, by David J. La France, De Witt-La France. Caricamento a siringa rovesciata.

• Patent US-2189696, applied in 1938, by Arthur E. Andrews, William F. Johnson, Mentmore. Penna a stilo.

• Patent US-D118872, applied in 1939, by John Vassos, Waterman. Corpo penna Hundred Year.

• Patent US-D118873, applied in 1939, by John Vassos, Waterman. Fermaglio Hundred Year.

• Patent US-D119006, applied in 1939, by William O. Ponath, Eagle. Matita meccanica.

• Patent DE-689266, applied in 1938, by Emil Ghüne, Albert Schneider, Soennecken. Montaggio fermaglio.

• Patent DE-689408, applied in 1938, by Ernest Wüller, Unbranded. Sistema di caricamento.

• Patent DE-689598, applied in 1937, by Heinrich Schwarting, Konrad Kressel, Montblanc. Penna a stilo.

• Patent DE-689744, applied in 1938, by Heinrich Schwarting, Konrad Kressel, Montblanc. Base stiloforo.

• Patent FR-854177, applied in 1938, Stylomine. Sistema di caricamento.

• Patent US-D119932, applied in 1939, by Alexis V. Lapteff, Esterbrook. Fermaglio.

• Patent GB-520445, applied in 1938, by Forrest Baird, Stephens. Boccetta e tappo per sversamenti.

• Patent US-2200042, applied in 1938, by Jaque A. Salz, Salz. Fusto perlaceo.

• Patent US-D120734, applied in 1940, by David Kahn, Wearever. Contenitore mine.

• Patent US-2203093, applied in 1937, by David Kahn, Wearever. Matita meccanica.

• Patent US-D121335, applied in 1940, by David Kahn, Wearever. Fermaglio.

• Patent US-D121336, applied in 1940, by David Kahn, Wearever. Fermaglio.

• Patent NL-48900, applied in 1938, by Kabushikikaisha Namiki Seisakusho, Pilot. Caricamento nomikomi-shiki.

• Patent US-2208460, applied in 1938, by David Kahn, Mack Seyforth, Wearever. Costruzione pennino.

• Patent GB-523717, applied in 1939, by Arthur Stanley Jones, Conway Stewart. Caricamento a stantuffo telescopico.

• Patent GB-524710, applied in 1939, by William F. Johnson, Mentmore. Pennino intercambiabile.

• Patent GB-525411, applied in 1939, by Edward G. Knight, De La Rue - Onoto. Penna a stilo.

• Patent US-2213931, applied in 1940, by Raymond S. Huss, Unbranded. Cannuccia con alimentatore.

• Patent US-2215630, applied in 1939, by Howard S. Wright, Lynn P. Martin, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent DE-696573, applied in 1938, by Albert Schneider, Soennecken. Caricamento a stantuffo.

• Patent FR-857935, applied in 1935, by Compagnie des Encres, Stephens, Lang - Curzon - Summit. Sistema di caricamento.

• Patent US-2216780, applied in 1937, by Henry C. Klagges, Esterbrook. Matita meccanica.

• Patent US-2217502, applied in 1940, by Joseph Wallace, Inkograph. Penna a stilo.

• Patent GB-527422, applied in 1939, by Leslie William Johnson, Edward Stephen Sears, Swan. Blocco afflusso inchiostro.

• Patent DE-697205, applied in 1937, Osmia. Caricamento a stantuffo.

• Patent US-2217755, applied in 1939, by Gabriel Larsen, Waterman. Caricamento Ink-Vue.

• Patent US-2218536, applied in 1939, by Henry C. Klagges, Esterbrook. Caricamento a sfiatatoio.

• Patent US-2219769, applied in 1939, by Robert S. Dorfman, Unbranded. Matita meccanica multipla.

• Patent US-D123293, applied in 1940, by David Kahn, Wearever. Fermaglio.

• Patent US-D123485, applied in 1940, by Ray E. McKiernan, W. A. Sheaffer Pen Company. Fermaglio.

• Patent US-2222599, applied in 1938, by Leon Hehl Ashmore, Esterbrook. Alimentatore per stiloforo ad intinzione (Dip-less pen per gli anglosassoni).

• Patent US-2223541, applied in 1939, by Marlin S. Baker, The Parker Pen Company. Alimentatore e sezione Parker 51.

• Patent US-2224162, applied in 1937, Unbranded. Fermaglio aprilettera.

• Patent US-2225864, applied in 1939, by Benjamin W. Hanle, Eagle. Sistema di caricamento.

• Patent US-D124230, applied in 1940, by Henry Dreyfuss, Wahl Eversharp. Matita meccanica Skyline.

• Patent US-D124248, applied in 1940, by Henry Dreyfuss, Wahl Eversharp. Matita meccanica Skyline.

• Patent US-D124266, applied in 1940, by Henry Zoll, Faber-Castell. Corpo penna.

• Patent FR-859771, applied in 1939, Stylomine. Serbatoio trasparente.

1941

• Patent DE-700837, applied in 1938, by Etienne Panici, Bayard. Fusto trasparente.

• Patent US-2228250, applied in 1935, by Leon H. Ashmore, Esterbrook. Pennino economico.

• Patent US-D124609, applied in 1940, by Louis Morrison, Morrison. Corpo penna e fermaglio.

• Patent DE-701860, applied in 1934, by Ernst Rösler, Kaweco, Montblanc. Pennino anti-corrosione.

• Patent US-2229749, applied in 1940, by Frank E. Little, Unbranded. Caricamento a cartuccia.

• Patent GB-532979, applied in 1939, by Albert J. Good, Mentmore. Sistema di caricamento.

• Patent GB-533420, applied in 1939, by Charles George Todd, Stephens. Calamaio a inchiostro solido.

• Patent CH-213442, applied in 1940, by Gustav Farner, Unbranded. Gruppo pennino.

• Patent US-2232231, applied in 1940, by O'Cal Hanson, W. A. Sheaffer Pen Company. Puntale matita meccanica.

• Patent US-2233846, applied in 1940, by Eldie E. Packard, Unbranded. Caricamento a cartuccia.

• Patent GB-534657, applied in 1939, The Parker Pen Company. Alimentatore e sezione Parker 51.

• Patent GB-534683, applied in 1939, The Parker Pen Company. Cappuccio Parker 51.

• Patent FR-862566, applied in 1937, The Parker Pen Company. Alimentatore e sezione.

• Patent US-2236720, applied in 1940, by Oscar H. Senf, W. A. Sheaffer Pen Company. Puntale matita meccanica.

• Patent US-2237155, applied in 1940, by Morris M. Malis, Unbranded. Fermaglio a molla.

• Patent US-2239526, applied in 1940, by David Juelss, Venus. Gomma per matita meccanica.

• Patent US-2241203, applied in 1937, by David Juelss, Frank Drews, Venus. Macchina per fare mine.

• Patent US-2241846, applied in 1938, by William R. Cuthbert, W. A. Sheaffer Pen Company. Boccetta con Skrip-Well.

• Patent US-2241850, applied in 1939, by William J. Gillet, Victor C. Sharp, W. A. Sheaffer Pen Company. Caricamento a levetta.

• Patent US-2241852, applied in 1939, by Walter J. Guenther, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent US-2241865, applied in 1939, by Lynn P. Martin, Herman K. Stempel, W. A. Sheaffer Pen Company. Alimentatore.

• Patent US-D127598, applied in 1940, by Clark Gower, Unbranded. Portamatite.

• Patent GB-537269, applied in 1937, The Parker Pen Company. Alimentatore e sezione.

• Patent CH-215680, applied in 1938, Mentmore. Penna a stilo.

• Patent US-2249004, applied in 1935, by David Kahn, Julius Kahn, Wearever. Macchina per tubi celluloide.

• Patent US-2249616, applied in 1940, by Lynn P. Martin, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent BE-441770, applied in 1941, by Friedrich Grube, Kaweco. Matita meccanica.

• Patent US-2252907, applied in 1941, by Arthur Winter, Dictator. Penna stilografica.

• Patent DE-709836, applied in 1940, by Heinrich Hebborn, Heinrich Schlicksupp, Luxor. Caricamento a sfiatatoio.

• Patent US-2254975, applied in 1940, by Milton R. Pickus, The Parker Pen Company. Punta pennino.

• Patent US-2255093, applied in 1940, by George E. Ziegler, Wahl Eversharp. Alimentatore Magic Feed.

• Patent US-2258030, applied in 1940, by John H. Oxley, Unbranded. Calamaio.

• Patent US-2258841, applied in 1941, by Jozsef Laszlo Biro, Eterpen. Penna a sfera.

• Patent US-2260571, applied in 1940, by Glenn E. Johndohl, Unbranded. Alimentatore.

• Patent US-D130356, applied in 1941, by Charles K. Lovejoy, Moore Pen Company. Corpo penna.

• Patent GB-541190, applied in 1940, by Henry Frankel, Mentmore. Costruzione fermaglio.

• Patent US-2263299, applied in 1939, by Benjamin W. Hanle, Eagle. Caricamento a levetta.

• Patent DE-714769, applied in 1939, by Wilhelm Schäfer, Osmia. Matita meccanica.

• Patent US-2267147, applied in 1939, by Marlin S. Baker, The Parker Pen Company. Pennino tubolare.

1942

• Patent US-D130997, applied in 1941, by Lynn P. Martin, Wilbur K. Olson, W. A. Sheaffer Pen Company. pennino conico.

• Patent US-D130998, applied in 1941, by Lynn P. Martin, Wilbur K. Olson, W. A. Sheaffer Pen Company. Corpo e pennino conico.

• Patent US-D130999, applied in 1941, by Lynn P. Martin, Wilbur K. Olson, W. A. Sheaffer Pen Company. Penna a pennino conico.

• Patent US-D131000, applied in 1941, by Lynn P. Martin, Wilbur K. Olson, W. A. Sheaffer Pen Company. Penna corta a corpo/cappuccio.

• Patent US-2272674, applied in 1940, by Otto J. Kehr, Unbranded. Fermaglio di sicurezza.

• Patent CH-219430, applied in 1940, by Gregor Miltner, Osmia. Portamine.

• Patent US-2274393, applied in 1940, by Frank C. Alexander, Wahl Eversharp. Fermaglio Skyline.

• Patent US-2274470, applied in 1941, by Farnham F. Boyle, William H. Lindemon, W. A. Sheaffer Pen Company. Cappuccio Crest.

• Patent CH-220232, applied in 1941, by Friedrich Grube, Kaweco. Matita meccanica.

• Patent FR-871035, applied in 1941, Montblanc. Matita meccanica.

• Patent US-2278907, applied in 1940, by Marlin S. Baker, The Parker Pen Company. Cappuccio Parker 51.

• Patent US-2279803, applied in 1941, by Aniceto R. Visitacion, Unbranded. Fermaglio di sicurezza.

• Patent US-2282840, applied in 1941, by Russell T. Wing, The Parker Pen Company. Alimentatore.

• Patent US-2283333, applied in 1941, by Lynn P. Martin, W. A. Sheaffer Pen Company. Alimentatore comb feed.

• Patent US-D132663, applied in 1940, by Henry Dreyfuss, Wahl Eversharp. Corpo della Skyline.

• Patent US-D132664, applied in 1941, by Henry Dreyfuss, Wahl Eversharp. Fermaglio della Skyline.

• Patent US-2286878, applied in 1941, by Ivan D. Tefft, Marlin S. Baker, The Parker Pen Company. Gomma matita meccanica.

• Patent FR-873073, applied in 1941, by Friedrich Grube, Kaweco. Matita meccanica.

• Patent US-2289963, applied in 1940, by Benjamin W. Hanle, Eagle. Pennino intercambiabile.

• Patent US-2292381, applied in 1940, by Henry C. Klagges, Esterbrook. Alimentatore.

• Patent US-2292683, applied in 1941, by Hans Alwin Bauer, Autopoint. Fermaglio.

• Patent US-2293343, applied in 1939, by Doyle P. Jacobs, Unbranded. Matita meccanica.

• Patent US-2293621, applied in 1940, by John William Para, Julius Kahn, Wearever. Matita meccanica.

• Patent US-2293622, applied in 1940, by John William Para, Wearever. Matita meccanica.

• Patent US-2293623, applied in 1940, by John William Para, Wearever. Matita meccanica.

• Patent DE-726251, applied in 1940, Mars Staedtler. Caricamento a stantuffo.

• Patent DE-727003, applied in 1940, by Gregor Miltner, Osmia. Punta portamine.

• Patent FR-876230, applied in 1941, Stylomine. Pennino.

• Patent US-2303373, applied in 1941, by Lynn P. Martin, W. A. Sheaffer Pen Company. Pennino conico integrato.

• Patent US-2303374, applied in 1941, by Lynn P. Martin, W. A. Sheaffer Pen Company. Alimentatore.

• Patent US-2304832, applied in 1940, by Harry C. Kofke, Henry C. Klagges, Esterbrook. Calamaio con serbatoio di inchiostro.

• Patent US-2305287, applied in 1942, by Norman E. Weigel, Wearever. Pennino coperto.

1943

• Patent US-2308658, applied in 1941, by Otto Jendresen, The Parker Pen Company. Macchina costruzione pennini.

• Patent US-2308659, applied in 1941, by Otto Jendresen, The Parker Pen Company. Macchina costruzione pennini.

• Patent US-2308810, applied in 1942, by Philip C. Hull, The Parker Pen Company. Base stiloforo.

• Patent FR-879518, applied in 1942, Bayard. Pennino.

• Patent FR-879582, applied in 1941, Stylomine. Alimentatore.

• Patent US-2312928, applied in 1941, by John William Para, Wearever. Matita meccanica.

• Patent DE-732603, applied in 1938, by Gregor Miltner et al, Faber-Castell. Caricamento a stantuffo.

• Patent US-2314551, applied in 1941, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Cappuccio e controcappuccio.

• Patent US-2314562, applied in 1941, by Walter A. Sheaffer, W. A. Sheaffer Pen Company. Tappo bottiglia inchiostro.

• Patent US-2314563, applied in 1942, by Herman K. Stempel, Robert E. Freeman, W. A. Sheaffer Pen Company. Cappuccio a banda alta.

• Patent US-D135448, applied in 1943, by Salomon M. Sager, Sager. Pennino coperto.

• Patent US-2316478, applied in 1941, by Norman E. Weigel, Wearever. Costruzione punta pennino.

• Patent US-2316479, applied in 1942, by Norman E. Weigel, Wearever. Sezione e alimentatore pennino coperto.

• Patent US-D135498, applied in 1943, by Norman E. Weigel, Wearever. Penna a pennino coperto.

• Patent US-2318950, applied in 1940, by James J. Larmour, Chilton. Fermaglio delle Chiltonian.

• Patent US-2318977, applied in 1940, by Milford G. Sypher, Chilton. Macchina per intarsi.

• Patent FR-881937, applied in 1941, Soennecken. Matita meccanica.

• Patent FR-51854E, applied in 1941, Stylomine. Alimentatore.

• Patent US-2319802, applied in 1940, by Henry Dreyfuss, Wahl Eversharp. Tubi in celluloide.

• Patent FR-883238, applied in 1942, Stylomine. Fermaglio.

• Patent US-D135890, applied in 1942, by David Kahn, Wearever. Fermaglio.

• Patent US-2325069, applied in 1942, by Fred P. Moore, Wahl Eversharp. Caricamento a levetta.

• Patent US-2325550, applied in 1942, by Salomon M. Sager, Sager. Sistema di caricamento.

• Patent US-2328116, applied in 1942, by Norman E. Weigel, Wearever. Pennino coperto.

• Patent US-2328143, applied in 1942, by Benjamin W. Hanle, Eagle. Alimentatore pennino coperto.

• Patent DE-738888, applied in 1940, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-2328580, applied in 1941, by Milton R. Pickus, The Parker Pen Company. Lega per pennini.

• Patent CH-228675, applied in 1941, Météore - La Plume d'Or. Caricamento a pulsante di fondo.

• Patent DE-739296, applied in 1939, by Emil Ghüne, Soennecken. Caricamento a stantuffo.

• Patent US-2329996, applied in 1942, by Silio Lubrani, Unbranded. Penna a serbatoio.

• Patent FR-886249, applied in 1941, Montblanc. Caricamento a stantuffo.

• Patent US-2331606, applied in 1942, by Benjamin W. Hanle, Eagle. Caricamento a siringa.

• Patent CH-229209, applied in 1941, Montblanc. Caricamento a stantuffo telescopico.

• Patent DE-741104, applied in 1939, by Emil Ghüne, Soennecken. Sistema di caricamento.

• Patent DE-741772, applied in 1937, by August Leistenschneider, Montblanc. Matita meccanica.

• Patent US-2335223, applied in 1943, by Norman E. Weigel, Wearever. Pennino coperto.

• Patent US-2337343, applied in 1941, by John William Para, Wearever. Alimentatore.

1944

• Patent US-2338947, applied in 1941, by Theodor Kovacs, Günther Wagner - Pelikan. Pennino intercambiabile.

• Patent US-2339079, applied in 1941, by Otto Jendresen, The Parker Pen Company. Macchina costruzione pennini.

• Patent US-2339290, applied in 1941, by John William Para, Wearever. Matita meccanica.

• Patent DE-744671, applied in 1941, by Erhard Sattmann, Faber-Castell. Penna a stilo.

• Patent FR-889907, applied in 1942, Météore - La Plume d'Or. Blocco fondello.

• Patent US-2339860, applied in 1942, by David Kahn, John William Para, Wearever. Caricamento a stantuffo.

• Patent US-2340359, applied in 1941, by George E. Ziegler, Wahl Eversharp. Sacchetto di gomma.

• Patent US-2343991, applied in 1942, by David F. Mohns, The Parker Pen Company. Caricamento vacumatic.

• Patent US-D138032, applied in 1944, by Victor H. Severy, Scripto. Penna a pennino carenato.

• Patent US-D137660, applied in 1944, by Victor H. Severy, Scripto. Penna a pennino carenato.

• Patent US-D137860, applied in 1944, by George D. Cloutier, Wahl Eversharp. Sezione Fifth Avenue.

• Patent US-D137866, applied in 1943, by Raymond Loewy, Wahl Eversharp. Corpo penna Fifth Avenue.

• Patent US-D137867, applied in 1943, by Raymond Loewy, Wahl Eversharp. Cesallatura Fifth Avenue.

• Patent CH-232147, applied in 1941, Günther Wagner - Pelikan. Caricamento a stantuffo.

• Patent US-2349553, applied in 1943, by David Juelss, Venus. Matita meccanica.

• Patent CH-232386, applied in 1941, Günther Wagner - Pelikan. Caricamento a stantuffo.

• Patent CH-232636, applied in 1941, Faber-Castell. Caricamento a stantuffo.

• Patent US-2353177, applied in 1942, by Fred P. Moore, Wahl Eversharp. Matita meccanica.

• Patent US-D138346, applied in 1943, by David Kahn, Wearever. Corpo penna completo.

• Patent DK-62545C, applied in 1941, Kaweco. Matita meccanica.

• Patent DE-746437, applied in 1936, Montblanc. Caricamento a stantuffo telescopico.

• Patent US-2356109, applied in 1942, by Joseph Wallace, Inkograph. Sacchetto dell'inchiostro.

• Patent NL-56798C, applied in 1941, Kaweco. Matita meccanica.

• Patent US-D138499, applied in 1944, by Garfield L. Beckstrom, Autopoint. Matita meccanica.

• Patent US-D138502, applied in 1944, by Garfield L. Beckstrom, Autopoint. Matita meccanica.

• Patent US-2358091, applied in 1944, by Charles K. Lovejoy, Moore Pen Company. Matita meccanica.

• Patent DE-718495, applied in 1937, by Heinrich Woringen, Robert Nitzsche, Kaweco. Matita meccanica.

• Patent US-2360297, applied in 1944, by Russell T. Wing, The Parker Pen Company. Sistema pennino coperto.

• Patent US-2362905, applied in 1941, by Orville E. Kuhlman, W. A. Sheaffer Pen Company. Tappo bottiglia inchiostro.

• Patent US-2362948, applied in 1943, by Walter D. Teague Jr et al, W. A. Sheaffer Pen Company. Stilografica a pennino retrattile.

• Patent US-D139551, applied in 1943, by Raymond Loewy, Wahl Eversharp. Fermaglio Fifth Avenue.

• Patent US-2365473, applied in 1942, by David Kahn, John William Para, Wearever. Montaggio fermaglio.

• Patent US-2365880, applied in 1944, by David Juelss, Venus. Matita meccanica/portamine.

• Patent US-D139839, applied in 1944, by Arthur Winter, Dictator. Stilografica.

1945

• Patent US-2368425, applied in 1944, by Benjamin F. Reynolds, Unbranded. Caricamento a cartuccia.

• Patent US-D140151, applied in 1944, by Arthur Winter, Dictator. Penna a sfera.

• Patent US-D140695, applied in 1944, by Charles K. Lovejoy, Moore Pen Company. Pennino Fingertip.

• Patent US-D140696, applied in 1944, by Charles K. Lovejoy, Moore Pen Company. Sezione Fingertip.

• Patent US-D140697, applied in 1944, by Charles K. Lovejoy, Moore Pen Company. Fusto della Fingertip.

• Patent US-2375770, applied in 1943, by Arthur O. Dahlberg, The Parker Pen Company. Pennino e alimentatore.

• Patent CH-237639, applied in 1942, Météore - La Plume d'Or. Blocco fondello.

• Patent GB-569286, applied in 1943, by Arthur E. Andrews, William F. Johnson, Mentmore. Pennino a tre fenditure.

• Patent DK-63549, applied in 1942, by Aktieselsksbet Kores, Unbranded. Calamaio con serbatoio di inchiostro.

• Patent US-2377444, applied in 1942, by John William Para, Karl Weisser, Wearever. Caricamento a pulsante di fondo.

• Patent US-D141588, applied in 1945, by David Kahn, Wearever. Corpo penna.

• Patent GB-570091, applied in 1943, by Eric Ernest Samuel Wade, Sydney Alfred Jones, Lang - Curzon - Summit. Apparecchiatura per test di flusso.

• Patent US-D141747, applied in 1945, by Arthur Winter, Dictator. Sezione per stilografica.

• Patent US-D138345, applied in 1943, by David Kahn, Wearever. Matita meccanica.

• Patent US-2380763, applied in 1944, by David Juelss, Venus. Alimentatore.

• Patent US-D142170, applied in 1945, by David Juelss, Venus. Sezione per stilografica.

• Patent US-D142381, applied in 1944, by Ned T. Fish, Lynn P. Martin, W. A. Sheaffer Pen Company. Cappuccio Crest.

• Patent US-D142382, applied in 1944, by Ned T. Fish, Lynn P. Martin, W. A. Sheaffer Pen Company. Cappuccio Valiant.

• Patent US-D142383, applied in 1944, by Lynn P. Martin, W. A. Sheaffer Pen Company. Fermaglio.

• Patent US-D142384, applied in 1944, by Lynn P. Martin, W. A. Sheaffer Pen Company. Sezione.

• Patent US-D142386, applied in 1944, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Fermaglio.

• Patent US-D142387, applied in 1944, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Cappuccio Crest.

• Patent US-D142388, applied in 1944, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Cappuccio.

• Patent US-D142389, applied in 1944, by Wilbur K. Olson, W. A. Sheaffer Pen Company. Sezione e gruppo pennino.

• Patent US-D142390, applied in 1944, by Wilbur K. Olson, Lynn P. Martin, W. A. Sheaffer Pen Company. Corpo penna.

• Patent US-D142391, applied in 1944, by Wilbur K. Olson, Lynn P. Martin, W. A. Sheaffer Pen Company. Corpo stiloforo.

• Patent US-D142392, applied in 1944, by Farnham F. Boyle, W. A. Sheaffer Pen Company. Cappuccio Crest.

• Patent US-2386500, applied in 1943, by Kenneth S. Parker, The Parker Pen Company. Base stiloforo.

• Patent US-2387001, applied in 1944, by Marlin S. Baker, The Parker Pen Company. Compensatore pressione Parker 51.

• Patent US-D142751, applied in 1945, by Joseph Tully, Eclipse. Sezione.

• Patent US-D143176, applied in 1945, by John N. Whitehouse, Unbranded. Penna stilografica.

• Patent GB-573545, applied in 1943, by Eric Ernest Samuel Wade, Sydney Alfred Jones, Lang - Curzon - Summit. Apparecchiatura per test di immersione.

• Patent US-2390541, applied in 1943, by Henry C. Klagges, Esterbrook. Pennino economico.

1946

• Patent US-D143508, applied in 1945, by Milton Reynolds, Reynolds. Penna a sfera.

• Patent US-2392942, applied in 1944, by Lester W. Ormsby, The Parker Pen Company. Chiusura cappuccio.

• Patent US-2393250, applied in 1944, by David Juelss, Venus. Gruppo pennino coperto.

• Patent US-2393251, applied in 1944, by David Juelss, Venus. Pennino coperto.

• Patent GB-575341, applied in 1944, by Edward Stephen Sears, Swan. Caricamento a levetta.

• Patent US-2396058, applied in 1944, by Karl Rath, Unbranded. Pennarello.

• Patent US-2396919, applied in 1944, by David Juelss, Venus. Pennino coperto.

• Patent FR-907722, applied in 1943, Kaweco. Cappuccio.

• Patent FR-907731, applied in 1944, Bayard. Sistema di caricamento.

• Patent US-2397229, applied in 1943, by Jozsef Laszlo Biro, Eterpen. Penna a sfera.

• Patent US-D144358, applied in 1945, by Ned D. Fish, Lynn P. Martin, W. A. Sheaffer Pen Company. Penna a sfera.

• Patent US-2398521, applied in 1944, by George D. Cloutier, Wahl Eversharp. Alimentatore e caricamento Fifth Avenue.

• Patent US-2398531, applied in 1944, by Philip C. Hull, The Parker Pen Company. Vacumatic speedline.

• Patent US-2400679, applied in 1944, by Jozsef Laszlo Biro, Eterpen. Penna a sfera.

• Patent US-2400768, applied in 1944, by David F. Mohns, The Parker Pen Company. Compensazione pressione Parker 51.

• Patent US-2401167, applied in 1940, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent BE-465190, applied in 1945, by Lucien Claret, Météore - La Plume d'Or. Anello di frizione per cappuccio.

• Patent BE-465191, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Fermaglio.

• Patent BE-465192, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Sezione per pennino coperto.

• Patent BE-465193, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Cappuccio e controcappuccio.

• Patent FR-911164, applied in 1945, by Fernand Victor Désiré Albert Outrequin, Unbranded. Caricamento a cartuccia.

• Patent US-2403039, applied in 1944, by Marlin S. Baker, The Parker Pen Company. Sistema di caricamento.

• Patent US-2403083, applied in 1944, by Philip C. Hull, The Parker Pen Company. Base stiloforo.

• Patent US-D140026, applied in 1944, by Peter Schladermundt, Olive Emslie, Salz. Penna stilografica.

• Patent US-D145171, applied in 1946, by Warren Green, Peter Schladermundt, Salz. Fermaglio.

• Patent US-2404063, applied in 1944, by Emmett Healy, The Parker Pen Company. Assemblaggio sezione.

• Patent US-2405381, applied in 1943, by Gerardo Hendrik va Spankeren, Eterpen. Caricamento per sfera.

• Patent US-2406330, applied in 1944, by Walter J. Heagney, The Parker Pen Company. Sistema di caricamento.

• Patent US-D145586, applied in 1946, by Milton Reynolds, Reynolds. Penna a sfera.

• Patent GB-580628, applied in 1944, by Mark Sydney Finburgh, William Thomas Higgins, Wyvern Fountain Pen Company. Pennino integrato.

• Patent GB-581290, applied in 1944, by Mark Sydney Finburgh, William Thomas Higgins, Wyvern Fountain Pen Company. Caricamento a sfiatatoio.

• Patent US-D145734, applied in 1946, by Lawrence W. Kendrick, Carter's Ink Company. Calamaio da scrivania.

• Patent US-2409869, applied in 1944, by Joseph J. Kelley, Unbranded. Caricamento a cartuccia.

• Patent US-2410423, applied in 1944, by Thomas F. Brinson, Scripto. Alimentatore e pennino.

• Patent US-D145870, applied in 1946, by Warren Green, Peter Schladermundt, Salz. Penna stilografica.

• Patent US-D146012, applied in 1945, by Harold E. Steinberg, Esterbrook. Pennino.

1947

• Patent US-2413904, applied in 1943, by Jozsef Laszlo Biro, Eterpen. Penna a sfera.

• Patent US-D146176, applied in 1946, by Warren Green, Peter Schladermundt, Salz. Penna stilografica.

• Patent US-D146181, applied in 1946, by Joshua Gordon Lippincott, Eberhard-Faber. Cappuccio e fermaglio.

• Patent CH-247460, applied in 1943, Mentmore. Pennino a tre fenditure.

• Patent US-2417861, applied in 1945, by Arthur O. Dahlberg, The Parker Pen Company. Alimentatore Parker 51.

• Patent US-2418218, applied in 1945, by Frank C. Deli et al, Autopoint. Fermaglio a molla.

• Patent US-2418410, applied in 1943, by Denison B. Hull, Unbranded. Fermaglio.

• Patent GB-586917, applied in 1944, by John Pinkney Gowland, Unbranded. Metodo di costruzione di pennini.

• Patent US-2419483, applied in 1945, by George D. Cloutier, Wahl Eversharp. Cappuccio Fifth Avenue.

• Patent FR-921200, applied in 1945, Stylomine. Pennino.

• Patent FR-921485, applied in 1945, by Lucien Claret, Météore - La Plume d'Or. Chiusura cappuccio.

• Patent FR-925384, applied in 1945, by Lucien Claret, Météore - La Plume d'Or. Sezione per pennino coperto.

• Patent US-D146806, applied in 1946, by Laszlo Moholy-Nagy, The Parker Pen Company. Corpo penna.

• Patent FR-922059, applied in 1945, Stylomine. Pennino carenato.

• Patent FR-922060, applied in 1945, Stylomine. Sistema di caricamento.

• Patent FR-922061, applied in 1945, Stylomine. Serbatoio trasparente.

• Patent BE-472541, applied in 1946, JiF. Matita meccanica.

• Patent US-2422351, applied in 1944, by Benjamin W. Hanle, Eagle. Pennino intercambiabile.

• Patent FR-922791, applied in 1946, Stylomine. Pennino in acciaio.

• Patent FR-922792, applied in 1946, Stylomine. Pennino carenato.

• Patent FR-922825, applied in 1946, Walkover. Alimentatore.

• Patent FR-922826, applied in 1946, Walkover. Chiusura cappuccio.

• Patent FR-923231, applied in 1946, Météore - La Plume d'Or. Pennino carenato.

• Patent FR-923550, applied in 1946, Météore - La Plume d'Or. Costruzione fermaglio.

• Patent US-D147107, applied in 1946, by Charles T. Breitenstein, Unbranded. Penna a sfera.

• Patent FR-923799, applied in 1939, by Orlando Quadretti, Colorado. Penna doppia.

• Patent US-2424731, applied in 1945, by Fred D. Woods et al, Autopoint. Sezione e alimentatore.

• Patent FR-925076, applied in 1946, by Emile Henry Jules Thinard, Edacoto. Sistema di caricamento.

• Patent FR-925385, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Cappuccio e controcappuccio.

• Patent US-2427033, applied in 1944, by John C. Wahl, Wahl Eversharp. Penna a sfera.

• Patent US-2427068, applied in 1945, by Robert W. Randolph, The Parker Pen Company. Penna a sfera.

• Patent US-2427069, applied in 1945, by Robert W. Randolph, The Parker Pen Company. Penna a sfera.

• Patent US-2427243, applied in 1944, by John C. Wahl, Wahl Eversharp. Penna a sfera.

• Patent CH-250673, applied in 1945, JiF. Pennino carenato.

• Patent FR-925959, applied in 1946, Stylomine. Realizzazione pennino.

• Patent CH-250922, applied in 1939, by Orlando Quadretti, Colorado. Penna doppia.

• Patent FR-926468, applied in 1946, Stylomine. Matita meccanica.

• Patent US-2428854, applied in 1945, by Robert W. Randolph, The Parker Pen Company. Penna a sfera.

• Patent US-2428863, applied in 1945, by Russell T. Wing, The Parker Pen Company. Compensatore pressione Parker 51.

• Patent US-2428960, applied in 1945, by George D. Cloutier, Wahl Eversharp. Penna a sfera.

• Patent CH-251140, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Fermaglio.

• Patent FR-927383, applied in 1946, Walkover. Sistema di caricamento.

• Patent US-2430023, applied in 1944, by Sydney E. Longmaid, Esterbrook. Pennino economico.

• Patent US-2431015, applied in 1943, by Arthur E. Andrews, William F. Johnson, Mentmore. Pennino a tre fenditure.

• Patent FR-928103, applied in 1946, Stylomine. Matita meccanica multipla.

• Patent US-D147982, applied in 1946, by Robert J. Lynn, Unbranded. Matita meccanica.

• Patent US-D143049, applied in 1945, by Maurice J. Waldinger, Unbranded. Matita meccanica.

• Patent US-2432061, applied in 1946, by Isidor Chesler, Eagle. Penna a sfera.

• Patent GB-595436, applied in 1945, The Parker Pen Company. Alimentatore e sezione.

• Patent US-2432112, applied in 1945, by Charles K. Lovejoy, Moore Pen Company. Pennino e sezione Fingertip.

• Patent GB-595572, applied in 1945, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Caricamento a pulsante di fondo.

• Patent GB-595652, applied in 1945, by Edward Stephen Sears, Swan. Sistema di caricamento.

1948

• Patent IT-445846, applied in 2024, Officine Meccaniche Armando Simoni. Caricamento a stantuffo.

• Patent FR-929775, applied in 1946, Stylomine. Sezione pennino coperto.

• Patent GB-598726, applied in 1945, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Sistema di caricamento.

• Patent FR-931799, applied in 1946, Stylomine. Pinza portamine.

• Patent FR-932296, applied in 1945, by Eric Ernest Samuel Wade, Charlesworth Livsey, Stephens, Lang - Curzon - Summit. Caricamento a pulsante di fondo.

• Patent FR-932339, applied in 1946, Stylomine. Sezione pennino coperto.

• Patent CH-254826, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Cappuccio e controcappuccio.

• Patent FR-934719, applied in 1946, Stylomine. Inchiostro.

• Patent FR-934720, applied in 1946, Stylomine. Inchiostro.

• Patent US-D149921, applied in 1947, by Norman E. Weigel, Wearever. Pennino.

• Patent CH-255121, applied in 1945, by Lucien Claret, Météore - La Plume d'Or. Anello di frizione per cappuccio.

• Patent CH-255727, applied in 1938, Stylomine. Sistema di caricamento.

• Patent US-D150320, applied in 1947, by Joseph Starr, Conklin Pen Manufacturing Co.. Corpo e cappuccio.

• Patent FR-937412, applied in 1946, Stylomine. Penna a sfera multipla.

• Patent GB-607060, applied in 1946, by Eric Ernest Samuel Wade, Lang - Curzon - Summit. Caricamento a levetta.

• Patent GB-608987, applied in 1946, by Arthur Stanley Jones, Lang - Curzon - Summit. Pennino coperto.

• Patent GB-609128, applied in 1946, by Arthur Stanley Jones, Lang - Curzon - Summit. Sezione per pennino.

• Patent GB-610253, applied in 1938, Stylomine. Sistema di caricamento.

• Patent CH-266126, applied in 1944, by Thomas F. Brinson, Scripto. Alimentatore e pennino.

• Patent FR-938710, applied in 1944, by Thomas F. Brinson, Scripto. Alimentatore e pennino.

• Patent US-2452504, applied in 1945, by Ivan D. Tefft, The Parker Pen Company. Penna a sfera.

• Patent US-D151661, applied in 1947, by John M. Sherrer, Unbranded. Matita meccanica con calendario.

• Patent US-2454086, applied in 1946, by Robert W. Randolph, The Parker Pen Company. Penna a sfera.

• Patent GB-612867, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Cappuccio e controcappuccio.

• Patent GB-612868, applied in 1945, by Lucien Claret, Météore - La Plume d'Or. Anello di frizione per cappuccio.

• Patent GB-612869, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Fermaglio.

• Patent GB-612870, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Sezione per pennino coperto.

• Patent GB-612956, applied in 1946, by William F. Johnson, Mentmore. Alimentatore.

• Patent US-D151989, applied in 1947, by Mahlon Edward Hirsch, Unbranded. Penna a sfera.

• Patent US-2455964, applied in 1944, by Arthur Winter, Dictator. Penna stilografica.

• Patent US-2456602, applied in 1946, by James W. Welsh, Unbranded. Chiusura fusto e cappuccio.

1949

• Patent GB-616010, applied in 1946, by Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent CH-259145, applied in 1946, JiF. Matita meccanica.

• Patent FR-941875, applied in 1946, Unbranded. Cappuccio.

• Patent AT-162116, applied in 1946, Unbranded. Fabbricazione stilografica.

• Patent CH-259468, applied in 1946, Stylomine. Matita meccanica.

• Patent FR-942385, applied in 1947, Unbranded. Cappuccio a scatto.

• Patent CH-260100, applied in 1945, The Parker Pen Company. Alimentatore e sezione.

• Patent US-2462929, applied in 1946, by Harlan H. Zodtner, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2464104, applied in 1945, by Ivan D. Tefft, The Parker Pen Company. Sistema di caricamento.

• Patent GB-619349, applied in 1946, by Mark Sydney Finburgh, Wyvern Fountain Pen Company. Costruzione cappuccio.

• Patent GB-620605, applied in 1946, Scripto. Alimentatore.

• Patent FR-944423, applied in 1947, Unbranded. Cappuccio a scatto.

• Patent GB-621241, applied in 1947, by Andrew Stuart Horn, Lang - Curzon - Summit. Caricamento a levetta.

• Patent GB-621354, applied in 1947, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Fermaglio.

• Patent DK-68984, applied in 1946, by Peter Jensen Neesgaard, Unbranded. Sistema di regolazione del flusso.

• Patent GB-621822, applied in 1946, by Leslie William Johnson, Edward Stephen Sears, Swan. Penna a sfera.

• Patent US-2468699, applied in 1944, by Fred D. Woods, Autopoint. Fermaglio.

• Patent BE-488498, applied in 1949, Lang - Curzon - Summit. Fermaglio a molla.

• Patent GB-623767, applied in 1946, by Leslie William Johnson, Edward Stephen Sears, Swan. Penna a sfera.

• Patent GB-623792, applied in 1946, by Roger François Perraud, JiF. Matita meccanica.

• Patent US-2472343, applied in 1946, by Anthony G. Rosa, Unbranded. Penna a stilo.

• Patent US-2473149, applied in 1945, by David Juelss, Venus. Matita meccanica.

• Patent US-2473688, applied in 1944, by Lynn P. Martin, W. A. Sheaffer Pen Company. Fermaglio a molla.

• Patent US-2473689, applied in 1945, by Charles N. Colstad, W. A. Sheaffer Pen Company. Fermaglio a molla.

• Patent US-2473690, applied in 1945, by Wilbur K. Olson, Lynn P. Martin, W. A. Sheaffer Pen Company. Fermaglio a molla.

• Patent CH-262296, applied in 1946, George W. Borg Corporation. Penna a sfera a punta inclinata.

• Patent US-2474996, applied in 1945, by Frank B. Wallis, W. A. Sheaffer Pen Company. Pennino conico integrato.

• Patent US-2519966, applied in 1946, by William F. Johnson, Mentmore. Alimentatore.

• Patent FR-947791, applied in 1946, by William F. Johnson, Mentmore. Alimentatore.

• Patent CH-263051, applied in 1947, Uhu. Matita meccanica.

• Patent US-2480014, applied in 1946, by Werner Germann, Caran D'Ache. Matita meccanica multipla.

• Patent US-2481874, applied in 1945, by Robert W. Randolph, The Parker Pen Company. Penna a sfera.

• Patent CH-263680, applied in 1947, Uhu. Caricamento a stantuffo.

• Patent FR-950038, applied in 1947, by Léon-Victor Roussel, Unbranded. Penna a sfera a punta inclinata.

• Patent US-2483329, applied in 1945, by John C. Wahl, Wahl Eversharp. Penna a sfera.

• Patent FR-950633, applied in 1947, by Henri Borrus, Unbranded. Penna a stilo.

• Patent US-2483603, applied in 1946, by Russell T. Wing, The Parker Pen Company. Pennino tubolare.

• Patent US-2484640, applied in 1946, by James A. Mustard, The Parker Pen Company. Matita meccanica.

• Patent US-D155532, applied in 1948, by Louis Morrison, Morrison. Penna completa.

• Patent CH-264326, applied in 1946, JiF. Matita meccanica doppia.

• Patent FR-951555, applied in 1946, by Harlan H. Zodtner, James A. Mustard, The Parker Pen Company. Caricamento a capillarità.

• Patent CH-264938, applied in 1944, by Biro-Patente Aktiengesellschaft, Eterpen. Penna a sfera.

• Patent US-2489463, applied in 1946, by William B. Reynolds, The Parker Pen Company. Inchiostro blu stabile.

• Patent US-2489983, applied in 1944, by Victor H. Severy, Scripto. Alimentatore e pennino carenato.

• Patent US-2491082, applied in 1944, by Jozsef Laszlo Biro, Wahl Eversharp. Penna a sfera.

• Patent US-D156413, applied in 1949, by Harry Esterow, Ideal Metal Products. Fermaglio.

• Patent US-D156633, applied in 1948, by Henry Krause, Chilton. Decorazione corpo e cappuccio.

1950

• Patent CA-462708, applied in 1947, by Yves Zuber, Stylomine. Pennino carenato.

• Patent US-2498384, applied in 1946, Unbranded. Caricamento a siringa.

• Patent US-2500833, applied in 1944, by Henry C. Klagges, Harry C. Kofke, Esterbrook. Sistema di caricamento.

• Patent DE-1603609U, applied in 1949, Geha. Alimentatore.

• Patent DE-1603609U, applied in 1949, Geha. Pistone stantuffo.

• Patent GB-634735, applied in 1946, The Parker Pen Company. Caricamento a capillarità.

• Patent GB-634823, applied in 1946, JiF. Matita meccanica doppia.

• Patent US-2503043, applied in 1945, by Robert Gruen, The Parker Pen Company. Base stiloforo.

• Patent US-2503061, applied in 1946, by Laszlo Moholy-Nagy, The Parker Pen Company. Base stiloforo.

• Patent US-2503080, applied in 1946, by Ivan D. Tefft, Marlin S. Baker, The Parker Pen Company. Matita meccanica.

• Patent GB-635144, applied in 1947, by Frederick George Heard, Swan. Penna a sfera.

• Patent US-2504420, applied in 1947, by Philip C. Hull, George W. Gilman, The Parker Pen Company. Matita meccanica.

• Patent FR-960832, applied in 1948, by Serge-Ernest Detanne, Unbranded. Penna a sfera a punta inclinata.

• Patent US-2506035, applied in 1945, by Kenneth S. Parker, The Parker Pen Company. Penna a sfera.

• Patent FR-54591E, applied in 1946, Stylomine. Pennino coperto.

• Patent US-D158465, applied in 1948, by David Kahn, Wearever. Fermaglio.

• Patent GB-636823, applied in 1949, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Fermaglio.

• Patent FR-961601, applied in 1948, Stylomine. Montaggio pennino.

• Patent US-2509234, applied in 1945, by David Kahn, Wearever. Montaggio cappuccio.

• Patent US-2509465, applied in 1946, by Russell T. Wing, The Parker Pen Company. Doppio serbatoio.

• Patent US-2510634, applied in 1945, by Philip C. Hull, The Parker Pen Company. Base stiloforo.

• Patent US-2510648, applied in 1945, by Laszlo Moholy-Nagy, The Parker Pen Company. Base stiloforo.

• Patent GB-638420, applied in 1946, Stylomine. Matita meccanica.

• Patent US-D158973, applied in 1949, by David Kahn, Wearever. Penna completa.

• Patent US-2512004, applied in 1945, by Russell T. Wing, The Parker Pen Company. Alimentatore.

• Patent US-2513380, applied in 1947, by Samuel E. Townsend, Esterbrook. Pennino a sfera.

• Patent CH-258612, applied in 1945, Stylomine. Pennino carenato.

• Patent GB-639958, applied in 1947, by Cyril George Barker, Wyvern Fountain Pen Company. Decorazione corpo e cappuccio.

• Patent GB-639996, applied in 1945, Stylomine. Pennino carenato.

• Patent US-2517522, applied in 1946, by Yves Zuber, Stylomine. Matita meccanica.

• Patent DE-1611226U, applied in 1950, Osmia. Montaggio fermaglio.

• Patent US-2519635, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Sezione per pennino coperto.

• Patent US-2519675, applied in 1946, by Joshua G. Lippincott, Waterman. Base stiloforo.

• Patent DE-1612403U, applied in 1950, Kaweco. Penna a sfera.

• Patent US-2521657, applied in 1944, by Victor H. Severy, Scripto. Costruzione stilografica.

• Patent US-D159978, applied in 1949, by Warren Green, Peter Schladermundt, Salz. Penna e cappuccio.

• Patent GB-642437, applied in 1945, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2522553, applied in 1945, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2522554, applied in 1947, by Harlan H. Zodtner, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2522555, applied in 1947, by Floyd E. Bartell, The Parker Pen Company. Caricamento a capillarità.

• Patent US-D160180, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Corpo e cappuccio.

• Patent DE-764096, applied in 1941, by Emil Ghüne, Soennecken. Matita meccanica.

• Patent US-2526268, applied in 1946, by Roger François Perraud, JiF. Matita meccanica.

• Patent US-2528327, applied in 1945, by Marlin S. Baker, The Parker Pen Company. Caricamento [[|Red band filler|red band]].

• Patent US-2528328, applied in 1948, by Marlin S. Baker, Robert W. Randolph, The Parker Pen Company. Matita meccanica.

• Patent US-2528390, applied in 1948, by Galen H. Sayler, The Parker Pen Company. Inchiostro non corrosivo.

• Patent US-2528408, applied in 1947, by Harlan H. Zodtner, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2531113, applied in 1946, by Wilbur Arthur Davis, Unbranded. Fermaglio a molla.

• Patent GB-646726, applied in 1947, The Parker Pen Company. Parker 61.

• Patent US-2533082, applied in 1948, by Marlin S. Baker, Robert W. Randolph, The Parker Pen Company. Costruzione cappuccio.

• Patent GB-647474, applied in 1946, George W. Borg Corporation. Penna a sfera a punta inclinata.

• Patent FR-969964, applied in 1945, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent FR-969966, applied in 1947, by Floyd E. Bartell et al, The Parker Pen Company. Parker 61.

• Patent FR-969988, applied in 1948, Robert Capouillez & C.ie. Fermaglio.

1951

• Patent US-2536923, applied in 1945, by Hans R. Fehling, Wahl Eversharp. Penna a sfera.

• Patent DE-801614, applied in 1949, by Josef Ganter, Unbranded. Penna a sfera.

• Patent US-2538294, applied in 1946, by Lucien Claret, Météore - La Plume d'Or. Fermaglio.

• Patent FR-878818, applied in 1942, Bayard. Pennino intercambiabile.

• Patent FR-971980, applied in 1940, Bayard. Sistema di caricamento.

• Patent DE-802498, applied in 1949, by Rolf Pöhler, Franz Hammerschlag, Soennecken. Caricamento a stantuffo.

• Patent FR-973683, applied in 1941, JiF. Caricamento a sfiatatoio.

• Patent FR-973950, applied in 1948, by Emile Henry Jules Thinard, Edacoto. Sistema di caricamento.

• Patent DE-803094, applied in 1949, by Hermann Mayr, Unbranded. Penna a sfera.

• Patent CH-274547, applied in 1947, The Parker Pen Company. Parker 61.

• Patent FR-978573, applied in 1948, by Armand-Lucien Claret, Météore - La Plume d'Or. Caricamento per penna a granuli di inchiostro.

• Patent US-2548906, applied in 1945, by John William Para, Wearever. Pennino intercambiabile.

• Patent DE-804411, applied in 1946, by William F. Johnson, Mentmore. Alimentatore.

• Patent DE-804532, applied in 1949, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent DE-804767, applied in 1949, by Heinrich Schwarting et al, Montblanc. Costruzione cappuccio.

• Patent DE-804769, applied in 1950, Uhu. Penna a sfera.

• Patent US-2553598, applied in 1947, by Lynn P. Martin, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent US-2553599, applied in 1947, by Lynn P. Martin, W. A. Sheaffer Pen Company. Base stiloforo.

• Patent US-2554641, applied in 1945, by Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent US-2554654, applied in 1946, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2557054, applied in 1948, by Richard J. Mansheim, W. A. Sheaffer Pen Company. Penna a sfera.

• Patent DE-709836, applied in 1949, by Heinrich Hebborn, Heinrich Schlicksupp, Luxor. Penna a sfera.

• Patent DE-806331, applied in 1949, by Heinrich Hebborn, Heinrich Schlicksupp, Luxor. Penna a sfera.

• Patent DE-806413, applied in 1949, Uhu. Penna a sfera.

• Patent DE-806832, applied in 1949, by Gregor Miltner, Faber-Castell. Pennino carenato.

• Patent US-2557710, applied in 1948, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Fermaglio.

• Patent US-D163686, applied in 1951, by Mendel Fried, Unbranded. Cappuccio per stilografica.

• Patent DE-1624589U, applied in 1950, Geha. Pennino.

• Patent FR-983319, applied in 1948, by Armando Simoni, Officine Meccaniche Armando Simoni. Pennino Omas 361.

• Patent DE-807778, applied in 1948, by Christoph Kunkel, Uhu. Costruzione sezione e cappuccio.

• Patent US-2561923, applied in 1945, by Edward B. Harmon, The Parker Pen Company. Base stiloforo.

• Patent DE-809514, applied in 1949, by Josef C. Lamy, Lamy. Penna a sfera.

• Patent DE-811086, applied in 1948, Uhu. Alimentatore.

• Patent FR-988082, applied in 1949, Stylomine. Bandelle elastiche.

• Patent US-2565667, applied in 1948, by Armando Simoni, Officine Meccaniche Armando Simoni. Pennino Omas 361.

• Patent GB-656673, applied in 1948, by Edward Stephen Sears, Swan. Pennino intercambiabile.

• Patent DE-1628052U, applied in 1951, Kaweco. Pezzo da esposizione pubblicitario.

• Patent DE-1628067U, applied in 1951, Kaweco. Penna a stilo.

• Patent DE-813669, applied in 1948, Uhu. Cappuccio fondello.

• Patent FR-989530, applied in 1949, by Edward Terrell, Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent FR-990285, applied in 1949, Stylomine. Pennino carenato.

• Patent DE-814119, applied in 1948, by Christoph Kunkel, Uhu. Pennino intercambiabile.

• Patent DE-814572, applied in 1949, by Gregor Miltner, Faber-Castell. Alimentatore.

• Patent CA-477244, applied in 1949, by William J. Tully et al, Eclipse. Sistema di caricamento.

• Patent FR-990926, applied in 1949, Bayard. Fermaglio a molla.

• Patent FR-991812, applied in 1949, by Pierre-Marie-Joseph Ledieu, Unbranded. Penna a stilo.

• Patent CH-278313, applied in 1949, Soennecken. Caricamento a stantuffo.

• Patent DE-816965, applied in 1949, by Konrad Kressel et al, Montblanc. Penna a stilo.

• Patent FR-992128, applied in 1944, JiF. Cappuccio.

• Patent DE-817414, applied in 1949, by Walter Fischer, Uhu. Penna a sfera.

• Patent DE-817415, applied in 1950, by Walter Fischer, Uhu. Penna a sfera.

• Patent DE-818614, applied in 1949, by Etienne Panici, Bayard. Fermaglio a molla.

• Patent DE-819511, applied in 1948, by Gregor Miltner, Faber-Castell. Lavorazione fusto.

• Patent DE-820097, applied in 1948, by Gregor Miltner, Faber-Castell. Montaggio fermaglio.

• Patent DE-820098, applied in 1949, by Paul Buschle, Compaktor. Alimentatore con sfiatatoio.

• Patent DE-820253, applied in 1950, by Emil Gühne et al, Soennecken. Alimentatore.

• Patent DE-820866, applied in 1950, by Walter Fischer, Uhu. Boccetta inchiostro.

• Patent DE-821773, applied in 1950, Geha. Matita meccanica.

• Patent DE-1631271U, applied in 1951, Montblanc. Pennino.

• Patent DE-822509, applied in 1950, Geha. Penna a sfera.

• Patent DE-824000, applied in 1950, by Christoph Kunkel, Uhu. Caricamento a stantuffo.

• Patent DE-824455, applied in 1943, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent US-2579342, applied in 1945, by Edward Stephen Sears, Swan. Sistema di caricamento.

• Patent FR-996587, applied in 1945, JiF. Pennino carenato.

1952

• Patent US-2580753, applied in 1945, by Herman C. Frentzel, The Parker Pen Company. Penna a sfera.

• Patent US-2581739, applied in 1945, by Russell T. Wing, The Parker Pen Company. Alimentatore.

• Patent US-2581740, applied in 1946, by Russell T. Wing, The Parker Pen Company. Stilografica a china.

• Patent DE-827908, applied in 1948, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent DE-828966, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent DE-829714, applied in 1950, by Christoph Kunkel, Uhu. Cappuccio.

• Patent DE-1633897U, applied in 1951, Kaweco. Espositore pubblicitario.

• Patent GB-666145, applied in 1949, by David Harrison, Wyvern Fountain Pen Company. Pennino coperto.

• Patent GB-666508, applied in 1948, by Armando Simoni, Officine Meccaniche Armando Simoni. Pennino Omas 361.

• Patent GB-666830, applied in 1949, Geha. Caricamento con riserva di inchiostro.

• Patent FR-1001319, applied in 1946, JiF. Matita meccanica.

• Patent DE-832559, applied in 1949, by Arnoldus Johann Michaël van der Akker, Unbranded. Penna a stilo.

• Patent DE-832720, applied in 1950, by Friedrich Grube, Kaweco. Penna a sfera.

• Patent CH-281156, applied in 1945, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2587949, applied in 1950, by Harlan H. Zodtner, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2588015, applied in 1948, by Herman Kochendoerffer, Unbranded. Pennino a tre punte.

• Patent FR-1002930, applied in 1946, JiF. Matita meccanica doppia.

• Patent DE-834963, applied in 1950, by Peter Franz, Felger & Co. Patentstift und Metallwarenfabrik. Matita meccanica doppia.

• Patent DE-835414, applied in 1950, by Konrad Kressel et al, Montblanc. Alimentatore.

• Patent DE-835416, applied in 1950, by Otto Axtmann, Uhu. Boccetta di inchiostro.

• Patent DE-1636577U, applied in 1950, Kaweco. Penna a sfera.

• Patent DE-835853, applied in 1949, by Gregor Miltner, Faber-Castell. Caricamento a stantuffo.

• Patent FR-1005453, applied in 1947, Stylomine. Bachelite con decorazioni metalliche.

• Patent FR-1005485, applied in 1947, Stylomine. Alimentatore.

• Patent US-2593082, applied in 1947, by Fred D. Woods, Autopoint. Sistema di caricamento.

• Patent DE-1637249U, applied in 1952, by Paul Buschle, Compaktor. Stilografica.

• Patent FR-1006326, applied in 1947, Uhu. Matita meccanica.

• Patent FR-1006658, applied in 1947, Uhu. Caricamento a stantuffo.

• Patent DE-838871, applied in 1950, by Konrad Kressel et al, Montblanc. Penna a stilo.

• Patent FR-1009170, applied in 1950, by Robert Marie Émile Ernest Ferdinand de Riverieulx, Unbranded. Fermaglio.

• Patent US-2598171, applied in 1948, by Philip C. Hull, The Parker Pen Company. Pennino a taglio orizzontale.

• Patent DE-840521, applied in 1950, by Josef C. Lamy, Lamy. Meccanismo stantuffo.

• Patent FR-1009954, applied in 1948, Uhu. Costruzione sezione e cappuccio.

• Patent US-2601846, applied in 1947, by Henry C. Klagges, Esterbrook. Alimentatore per stiloforo ad intinzione (Dip-less pen per gli anglosassoni).

• Patent US-2603189, applied in 1947, by Mario Segre, W. A. Sheaffer Pen Company. Sistema di caricamento.

• Patent BE-512452, applied in 1951, Lang - Curzon - Summit. Fermaglio a molla.

• Patent DE-844421, applied in 1950, Geha. Pennino.

• Patent DE-845322, applied in 1951, by Josef C. Lamy, Lamy. Controcappuccio.

• Patent US-2605745, applied in 1948, by Karl Weisser, David Kahn, Wearever. Penna a sfera.

• Patent US-2605746, applied in 1947, by David Kahn, Karl Weisser, Wearever. Penna a sfera.

• Patent DE-846072, applied in 1951, by Ernst Rösler, Montblanc. Boccetta inchiostro.

• Patent DE-846221, applied in 1949, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent DE-847271, applied in 1949, by Gregor Miltner, Osmia, Faber-Castell. Portamine.

• Patent GB-679065, applied in 1950, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Fermaglio.

• Patent US-2610611, applied in 1948, by Lynn P. Martin, W. A. Sheaffer Pen Company. Penna a sfera.

• Patent US-2610612, applied in 1949, by Lynn P. Martin, W. A. Sheaffer Pen Company. Caricamento Touch Down.

• Patent DE-1644009U, applied in 1952, Kaweco. Stilografica in celluloide.

• Patent DE-850124, applied in 1943, by Konrad Kressel, Montblanc. Montaggio fermaglio.

• Patent GB-679783, applied in 1950, by Edward Stephen Sears, Swan. Alimentatore e sezione.

• Patent DE-851465, applied in 1944, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent US-2612867, applied in 1948, by Marlin S. Baker, Harlan H. Zodtner, The Parker Pen Company. Caricamento aerometric.

• Patent DE-854167, applied in 1944, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent US-2617387, applied in 1947, by Max Knobel, W. A. Sheaffer Pen Company. Penna a sfera.

• Patent FR-1016440, applied in 1950, Stylomine. Montaggio fermaglio.

• Patent DE-856114, applied in 1950, by Josef C. Lamy, Lamy. Alimentatore e sezione.

• Patent DE-856273, applied in 1950, by William F. Johnson, Mentmore. Pennino.

• Patent DE-856569, applied in 1948, by Henry C. Klagges, Harold E. Steinberg, Esterbrook. Calamaio con serbatoio di inchiostro.

• Patent US-2619070, applied in 1946, by Marlin S. Baker, The Parker Pen Company. Pennino coperto e alimentatore.

• Patent US-2620774, applied in 1948, by James A. Mustard, The Parker Pen Company. Alimentatore a capillarità.

• Patent US-2621629, applied in 1947, by Henry C. Klagges, Esterbrook. Calamaio/base per stiloforo con serbatoio di inchiostro.

1953

• Patent US-2624315, applied in 1949, by Karl Weisser, David Kahn, Wearever. Penna a sfera.

• Patent GB-685706, applied in 1949, Eclipse. Penna a sfera.

• Patent DE-863767, applied in 1942, by Josef C. Lamy, Lamy. Matita multipla.

• Patent BE-513137, applied in 1951, by Guy Frédéric Rigondaud, Platignum. Caricamento a capillarità.

• Patent FR-1020261, applied in 1950, by George Shey, Unbranded. Sistema di caricamento.

• Patent DE-867212, applied in 1951, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent DE-867213, applied in 1951, by Josef C. Lamy, Lamy. Alimentatore.

• Patent US-2628431, applied in 1949, by Dave Chapman, The Parker Pen Company. Attrezzatura pulizia penne.

• Patent DE-870806, applied in 1951, by Ernst Rösler, Montblanc. Boccetta inchiostro.

• Patent DE-870813, applied in 1942, by Paul Buschle, Compaktor. Caricamento a sfiatatoio.

• Patent US-2631569, applied in 1946, by Henry C. Klagges, Esterbrook. Caricamento a levetta.

• Patent GB-688902, applied in 1949, by Jonh George Burnham, Burnham. Pennino coperto.

• Patent DE-1653241U, applied in 1952, Geha. Matita meccanica.

• Patent DE-873365, applied in 1944, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent DK-75743, applied in 1948, Lang - Curzon - Summit. Fermaglio.

• Patent US-D169456, applied in 1952, by Nolan Kent Rhoades, The Parker Pen Company. Fermaglio.

• Patent FR-1026695, applied in 1950, Walkover. Alimentazione per penna a sfera.

• Patent DE-875462, applied in 1940, by Emil Wenzel, Soennecken. Alimentatore.

• Patent DE-1656016U, applied in 1952, Geha. Matita meccanica.

• Patent DE-1656017U, applied in 1952, Geha. Matita meccanica.

• Patent FR-1028424, applied in 1950, Bayard. Penna a sfera.

• Patent US-2640297, applied in 1952, by Soren S. Adams, Unbranded. Penna "esplosiva" giocattolo.

• Patent DE-879811, applied in 1951, by Manfred Fischer, Uhu. Penna a sfera UHU-Kugeltinter.

• Patent FR-1031303, applied in 1951, Edacoto. Penna a sfera.

• Patent US-2642842, applied in 1946, by David Kahn, Karl Weisser, Wearever. Penna a sfera.

• Patent FR-1032362, applied in 1951, JiF, Waterman. Caricamento a cartuccia.

• Patent DE-882047, applied in 1947, by Floyd E. Bartell et al, The Parker Pen Company. Parker 61.

• Patent US-RE23683, applied in 1952, by Mario Segre, W. A. Sheaffer Pen Company. Sistema di caricamento.

• Patent US-2645205, applied in 1948, by Robert W. Randolph, The Parker Pen Company. Caricamento aerometric.

• Patent US-2645206, applied in 1948, by David F. Mohns, The Parker Pen Company. Pennino tubolare.

• Patent DK-76166, applied in 1949, Geha. Caricamento con riserva di inchiostro.

• Patent DE-761811, applied in 1941, by Emil Ghüne, Emil Wenzel, Soennecken. Boccetta inchiostro.

• Patent US-2648309, applied in 1950, by Floyd E. Bartell, The Parker Pen Company. Alimentatore caricamento a capillarità.

• Patent FR-57796E, applied in 1945, by Lucien Claret, Météore - La Plume d'Or. Sezione per pennino coperto.

• Patent FR-1033293, applied in 1951, Stylomine. Regolatore alimentazione.

• Patent FR-1037142, applied in 1951, Stylomine. Caricamento a levetta.

• Patent FR-1037143, applied in 1951, Stylomine. Alimentatore.

• Patent FR-57926E, applied in 1948, by Henri Borrus, Unbranded. Penna a stilo.

• Patent DE-755511, applied in 1941, by Emil Ghüne, Soennecken. Caricamento a stantuffo.

• Patent FR-1040173, applied in 1951, by Guy Frédéric Rigondaud, Platignum. Caricamento a capillarità.

• Patent FR-1041399, applied in 1951, Stylomine. Montaggio fermaglio.

• Patent DE-894217, applied in 1952, Kaweco. Fermaglio e cappuccio.

• Patent DE-894218, applied in 1950, Fend. Sezione ed alimentatore.

• Patent AT-176469, applied in 1951, Centropen. Alimentatore.

• Patent FR-1042361, applied in 1950, Mentmore. Pennino.

• Patent FR-1045856, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent DE-898866, applied in 1952, by Fritz Lauerbach, Gregor Miltner, Faber-Castell. Sezione e gruppo pennino.

• Patent DE-1668306U, applied in 1953, Montblanc. Costruzione fermaglio.

• Patent FR-1047934, applied in 1950, by Hendrik Karel Domenicus van den Bussche, Unbranded. Penna a sfera.

• Patent FR-1048242, applied in 1952, by H. Boursier, R. Petit, Société des établissements christian. Fermaglio.

• Patent DE-900667, applied in 1951, by Balthasar Götz, Unbranded. Penna a sfera.

1954

• Patent DE-900908, applied in 1950, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent US-2669224, applied in 1950, by Benjamin F. Miessner, Unbranded. Pennino con divaricatore.

• Patent US-2670711, applied in 1947, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent GB-705613, applied in 1951, by Balthasar Götz, Unbranded. Penna a sfera.

• Patent FR-1058739, applied in 1951, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent DE-1673570U, applied in 1952, Montblanc. Costruzione cappuccio.

• Patent DE-907749, applied in 1952, by Josef C. Lamy, Lamy. Matita meccanica.

• Patent DE-907750, applied in 1952, by Josef C. Lamy, Lamy. Alimentatore.

• Patent FR-1060384, applied in 1951, Lang - Curzon - Summit. Fermaglio a molla.

• Patent FR-1060752, applied in 1947, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Fermaglio.

• Patent DE-1674855U, applied in 1954, Mars Staedtler. Penna a sfera.

• Patent US-2676570, applied in 1949, by Harry J. Fahringer, Wearever. Penna a sfera.

• Patent GB-708633, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-1063990, applied in 1952, Edacoto. Sistema di caricamento.

• Patent US-2678635, applied in 1949, by Henry C. Klagges, Harold E. Steinberg, Esterbrook. Calamaio con serbatoio di inchiostro.

• Patent FR-59403E, applied in 1949, Stylomine. Montaggio pennino.

• Patent US-2681041, applied in 1946, by Harlan H. Zodtner, James A. Mustard, The Parker Pen Company. Caricamento a capillarità.

• Patent DE-1679396U, applied in 1953, Soennecken. Caricamento a stantuffo.

• Patent US-1890100, applied in 1948, by Harry Spiro, Unbranded. Penna a inchiostro concentrato.

• Patent US-2684052, applied in 1948, by Ernest W. Rickmeyer, The Parker Pen Company. Caricamento a capillarità.

• Patent GB-713536, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-1071624, applied in 1951, Stylomine. Barra di pressione.

• Patent FR-1071637, applied in 1951, Stylomine. Fermaglio.

• Patent FR-1071648, applied in 1952, Stylomine. Alimentatore.

• Patent US-2690739, applied in 1953, by Norman E. Weigel, Wearever. Sovra-serbatoio pennino.

• Patent FR-1076270, applied in 1952, by Nolan Kent Rhoades, The Parker Pen Company. Gruppo pennino a capillarità.

• Patent US-2692580, applied in 1952, by David Kahn, Karl Weisser, Wearever. Penna a sfera.

• Patent FR-1078557, applied in 1953, JiF, Waterman. Caricamento a cartuccia.

• Patent DE-920051, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

1955

• Patent US-2699147, applied in 1952, by Nolan Kent Rhoades, The Parker Pen Company. Corpo penna con fermaglio.

• Patent DE-1692370U, applied in 1954, Montblanc. Sezione zigrinata.

• Patent US-2702021, applied in 1948, by Ivan D. Tefft, The Parker Pen Company. Caricamento a capillarità.

• Patent CH-305143, applied in 1951, by Guy Frédéric Rigondaud, Platignum. Caricamento a capillarità.

• Patent FR-1086929, applied in 1953, by H. Boursier, R. Petit, Société des établissements christian. Fermaglio.

• Patent DE-1694185U, applied in 1954, by Hans Müller, Union Vulpenhouderfabriek. Sistema di compensazione per un alimentatore.

• Patent FR-1088631, applied in 1953, JiF. Scatolina mine.

• Patent DE-761937, applied in 1941, by Heinrich Schwarting, Konrad Kressel, Montblanc. Caricamento a stantuffo.

• Patent BE-536146, applied in 1954, by N. V. Vulpenhouderfabriek "Union", Union Vulpenhouderfabriek. Alimentatore.

• Patent GB-728188, applied in 1953, JiF, Waterman. Caricamento a cartuccia.

• Patent DE-1696470U, applied in 1954, by Josef C. Lamy, Lamy. Penna a sfera.

• Patent DE-926653, applied in 1952, by Josef C. Lamy, Lamy. Alimentatore.

• Patent US-D174667, applied in 1954, by Norman E. Weigel, Wearever. Costruzione pennino.

• Patent GB-729639, applied in 1951, by Edward Stephen Sears, Swan. Pennino intercambiabile.

• Patent GB-729729, applied in 1952, by Edward Stephen Sears, Swan. Alimentatore e sezione.

• Patent CH-307024, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-61714E, applied in 1951, by Pierre-Marie-Joseph Ledieu, Unbranded. Penna a stilo.

• Patent US-2708904, applied in 1951, by Nolan Kent Rhoades, The Parker Pen Company. Base stiloforo.

• Patent DE-928276, applied in 1942, by Emil Ghüne, Soennecken. Boccetta inchiostro.

• Patent BE-520362, applied in 1953, JiF, Waterman. Caricamento a cartuccia.

• Patent ES-215091, applied in 1953, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent GB-732463, applied in 1951, by Guy Frédéric Rigondaud, Platignum. Caricamento a capillarità.

• Patent DE-929470, applied in 1953, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent US-2712299, applied in 1948, by Ernst W. Rickmeyer, The Parker Pen Company. Materiale per caricamento a capillarità.

• Patent GB-732982, applied in 1951, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent DE-933553, applied in 1953, by Heinrich Schwarting et al, Montblanc. Costruzione cappuccio.

• Patent FR-1073346, applied in 1951, by Alberto Del Piero, Diplomatic Patented Pen. Caricamento a cartuccia.

• Patent GB-738754, applied in 1951, by Alberto Del Piero, Diplomatic Patented Pen. Caricamento a cartuccia.

• Patent GB-739284, applied in 1952, Lamy. Alimentatore.

• Patent FR-1104618, applied in 1953, Fabbrica Italiana Penne a Serbatoio Aurora. Caricamento a cartuccia.

• Patent US-2724367, applied in 1953, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent DE-935653, applied in 1952, by Fritz Lauerbach, Gregor Miltner, Faber-Castell. Sezione e gruppo pennino.

• Patent US-2726639, applied in 1953, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent CH-311831, applied in 1953, JiF, Waterman. Caricamento a cartuccia.

• Patent DE-936849, applied in 1952, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent DE-936914, applied in 1953, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent CH-312235, applied in 1952, Lamy. Alimentatore.

1956

• Patent DE-938709, applied in 1952, by Gregor Miltner, Faber-Castell. Sistema di alimentazione.

• Patent FR-1111133, applied in 1953, Mentmore. Fermaglio.

• Patent DE-1718469U, applied in 1954, by Josef C. Lamy, Lamy. Penna a sfera.

• Patent US-2737927, applied in 1954, by Nolan Kent Rhoades, The Parker Pen Company. Base stiloforo.

• Patent DE-941049, applied in 1951, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-D177359, applied in 1954, by Robert G. Plantholt et al, Waterman. Cappuccio e fermaglio Waterman CF.

• Patent US-D177369, applied in 1955, by Robert H. Ensign, Danforth Cardozo Jr., Scripto. Penna triangolare.

• Patent US-D177560, applied in 1955, by Robert H. Ensign, Danforth Cardozo Jr., Scripto. Penna triangolare.

• Patent DE-1721600U, applied in 1956, Montblanc. Matita meccanica.

• Patent US-2749883, applied in 1953, by Raymond L. Dostert, Wahl Eversharp. Sistema di caricamento.

• Patent US-D178033, applied in 1954, by Robert G. Plantholt et al, Waterman. Corpo penna Waterman CF.

• Patent NL-81874, applied in 1954, by N. V. Vulpenhouderfabriek "Union", Union Vulpenhouderfabriek. Alimentatore.

• Patent BE-548110, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-2750927, applied in 1952, by David Kahn, Wearever. Montaggio sezione/pennino.

• Patent FR-1119961, applied in 1954, by N. V. Vulpenhouderfabriek Union, Union Vulpenhouderfabriek. Alimentatore.

• Patent US-2756722, applied in 1952, by Josef C. Lamy, Lamy. Alimentatore.

• Patent GB-754680, applied in 1953, Fabbrica Italiana Penne a Serbatoio Aurora. Caricamento a cartuccia.

• Patent US-2758568, applied in 1953, by Harold E. Steinberg, Henry C. Klagges, Esterbrook. Calamaio con serbatoio di inchiostro.

• Patent US-2766728, applied in 1950, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-2766729, applied in 1951, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-1125376, applied in 1954, Waterman. Costruzione cartuccia.

• Patent US-D179053, applied in 1956, by Marlin S. Baker, The Parker Pen Company. Stilografica affusolata.

• Patent US-2769427, applied in 1951, by Lynn P. Martin, W. A. Sheaffer Pen Company. Caricamento snorkel.

• Patent US-2770221, applied in 1951, by William Tonkowich, Waterman. Alimentatore.

• Patent DE-952418, applied in 1953, by Erich Buschle, Compaktor. Penna a stilo.

• Patent US-2773479, applied in 1952, by Nolan Kent Rhoades, The Parker Pen Company. Gruppo pennino a capillarità.

• Patent CH-318128, applied in 1951, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-2774332, applied in 1952, by Ivan D. Tefft, The Parker Pen Company. Caricamento a capillarità.

• Patent US-2774333, applied in 1950, by David Kahn, Wearever. Alimentatore e sezione.

• Patent US-D179425, applied in 1955, by Kenneth S. Parker, The Parker Pen Company. Cappuccio Rainbow cap.

1957

• Patent FR-1128625, applied in 1955, Gold Starry. Penna a sfera.

• Patent CH-318853, applied in 1953, by Aldo Torchi, Fabbrica Italiana Penne a Serbatoio Aurora. Caricamento a cartuccia.

• Patent FR-1131269, applied in 1955, JiF. Penna a sfera.

• Patent DE-958812, applied in 1949, Geha. Caricamento con riserva di inchiostro.

• Patent US-2782762, applied in 1955, by Donald H. Young, Waterman. Cappuccio a scatto.

• Patent US-2782763, applied in 1953, by Harlan H. Zodtner, The Parker Pen Company. Caricamento a capillarità.

• Patent FR-66402E, applied in 1948, by Eric Ernest Samuel Wade, Charlesworth Livsey, Lang - Curzon - Summit. Fermaglio.

• Patent DE-958993, applied in 1953, by Rolf Pöhler, Franz Welsch, Soennecken. Caricamento a sfiatatoio.

• Patent US-2784699, applied in 1952, by Craig R. Sheaffer, W. A. Sheaffer Pen Company. Snorkel a capillarità.

• Patent DE-1004522, applied in 1954, by Josef C. Lamy, Lamy. Alimentatore.

• Patent GB-772321, applied in 1954, Waterman. Costruzione cartuccia.

• Patent DE-1007210, applied in 1954, by Hans Müller, Union Vulpenhouderfabriek. Alimentatore.

• Patent DE-963224, applied in 1954, by Ernst Rösler, Konrad Kressel, Montblanc. Caricamento a stantuffo.

• Patent DE-1008147, applied in 1954, by Josef C. Lamy, Lamy. Gruppo pennino.

• Patent DE-963668, applied in 1951, by Alberto Del Piero, Diplomatic Patented Pen. Caricamento a cartuccia.

• Patent DE-1008605, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent DE-1009055, applied in 1953, Fabbrica Italiana Penne a Serbatoio Aurora. Caricamento a cartuccia.

• Patent DE-1009969, applied in 1956, by Ernst Rösler, Konrad Kressel, Montblanc. Penna a sfera.

• Patent US-D181705, applied in 1956, by John Bruce, Waterman. Corpo penna.

• Patent DE-1010415, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-2799246, applied in 1954, by Lynn P. Martin, W. A. Sheaffer Pen Company. Meccanismo snorkel filler.

• Patent US-2799247, applied in 1954, by Lynn P. Martin, W. A. Sheaffer Pen Company. Meccanismo snorkel filler.

• Patent US-2802448, applied in 1954, by Donald H. Young, Waterman. Caricamento a cartuccia della CF.

• Patent US-2802449, applied in 1953, by Lynn P. Martin, W. A. Sheaffer Pen Company. Meccanismo snorkel filler.

• Patent US-2802450, applied in 1954, by Frederick R. Wittnebert, The Parker Pen Company. Caricamento a capillarità.

• Patent DE-1014459, applied in 1953, by Heinrich Schwarting et al, Montblanc. Caricamento a stantuffo.

• Patent US-2807237, applied in 1953, by David Kahn, Morris D. Levy, Wearever. Caricamento a levetta.

• Patent GB-784388, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-2811947, applied in 1951, by Guy Frédéric Rigondaud, Platignum. Caricamento a capillarità.

• Patent US-2811948, applied in 1954, by David Kahn, Morris Levy, Wearever. Pennino intercambiabile.

1958

• Patent FR-1149886, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent FR-1151914, applied in 1955, by Umberto Legnani, LUS. Caricamento a cartuccia.

• Patent FR-1152674, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent US-D182162, applied in 1956, by Joseph Carreiro, Esterbrook. Penna.

• Patent US-D182163, applied in 1956, by Joseph Carreiro, Esterbrook. Cappuccio.

• Patent US-D182164, applied in 1956, by Joseph Carreiro, Esterbrook. Fermaglio.

• Patent DE-1763291U, applied in 1957, by Gilbert Richard, Unbranded. Impugnatura per cannuccia.

• Patent DE-1026662, applied in 1955, by Josef C. Lamy, Lamy. Caricamento a stantuffo.

• Patent GB-793269, applied in 1955, by Leon Bagrit, Stephens. Ricambio sfera.

• Patent US-2831460, applied in 1954, by Roland L. Brannon, W. A. Sheaffer Pen Company. Meccanismo snorkel filler.

• Patent US-2833251, applied in 1955, by Farnham F. Boyle, Ritepoint. Penna a sfera doppia.

• Patent FR-1156940, applied in 1956, by Umberto Legnani, LUS. Pennino intercambiabile.

• Patent GB-795902, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent CH-330524, applied in 1955, by Gregor Miltner, Faber-Castell. Sistema di alimentazione.

• Patent US-D183112, applied in 1957, by Arthur Winter, Dictator. Sezione per stilografica.

• Patent DE-1034066, applied in 1955, by Josef C. Lamy, Lamy. Alimentatore.

• Patent US-D183696, applied in 1955, by David Kahn, Wearever. Penna completa.

• Patent FR-1164875, applied in 1957, Edacoto. Penna a sfera.

• Patent FR-1166468, applied in 1956, Stylomine. Alimentatore.

• Patent FR-1166469, applied in 1956, Stylomine. Alimentatore.

• Patent FR-1168064, applied in 1955, by Umberto Legnani, LUS. Penna a sfera.

1959

• Patent US-2868173, applied in 1954, by Richard J. Mansheim, W. A. Sheaffer Pen Company. Meccanismo snorkel filler.

• Patent FR-1171431, applied in 1956, Pilot. Gruppo pennino e Switch filler.

• Patent GB-807974, applied in 1956, by Kenneth Buckingham Robinson, Stephens. Pennino.

• Patent US-2871823, applied in 1956, by Marlin S. Baker, The Parker Pen Company. Costruzione fermaglio.

• Patent US-2871825, applied in 1956, by Ryujiro Uchida, Chuji Kurihara, Pilot. Gruppo pennino e Switch filler.

• Patent GB-809236, applied in 1956, Pilot. Gruppo pennino e Switch filler.

• Patent NL-90322, applied in 1951, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-1175101, applied in 1957, Stylomine. Montaggio fermaglio.

• Patent US-2881737, applied in 1955, by Donald H. Young, Waterman. Alimentatore.

• Patent US-D185263, applied in 1958, by John Bruce, Waterman. Fermaglio.

• Patent US-2888908, applied in 1952, by Robert W. Randolph, The Parker Pen Company. Sezione stiloforo.

• Patent US-2889810, applied in 1951, by Robert W. Randolph, The Parker Pen Company. Base per stiloforo.

• Patent US-2891512, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-D185581, applied in 1958, by Clemens A. Sonntag, Lauren O. Main, The Parker Pen Company. Pennino.

• Patent US-D185824, applied in 1957, by Warren B. Armstrong, Donald D. Furman, The Parker Pen Company. Impugnatura.

• Patent US-2902978, applied in 1956, by Umberto Legnani, LUS. Caricamento a cartuccia.

• Patent US-2905148, applied in 1952, by Marlin S. Baker, The Parker Pen Company. Pennino integrato.

• Patent CH-341736, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-1194847, applied in 1958, Bayard. Scatola.

• Patent US-2914028, applied in 1954, by Lynn P. Martin, W. A. Sheaffer Pen Company. Meccanismo snorkel filler.

• Patent FR-1197651, applied in 1955, by Umberto Legnani, LUS. Caricamento a cartuccia.

• Patent US-2916013, applied in 1953, by Nolan Kent Rhoades, Marlin S. Baker, The Parker Pen Company. Bocchetta stiloforo.

• Patent CH-343260, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-D186923, applied in 1958, by William M. Williams, W. A. Sheaffer Pen Company. Decorazione corpo e cappuccio.

1960

• Patent US-2919677, applied in 1957, by Richard J. Mansheim, W. A. Sheaffer Pen Company. Caricamento a cartuccia.

• Patent FR-1204778, applied in 1958, JiF, Waterman. Sistema di caricamento.

• Patent US-D187253, applied in 1958, by Raymond E. Lambert, W. A. Sheaffer Pen Company. Decorazione corpo e cappuccio.

• Patent US-D187254, applied in 1958, by William M. Williams, W. A. Sheaffer Pen Company. Decorazione corpo e cappuccio.

• Patent FR-1207795, applied in 1957, Mentmore. Sistema di caricamento.

• Patent DE-1806422U, applied in 1959, by Arno Rodhüser, Unbranded. Impugnatura per matita.

• Patent CH-352252, applied in 1957, by Derrick John Silver, Mentmore. Sistema di caricamento.

• Patent US-D187315, applied in 1958, by William M. Williams, W. A. Sheaffer Pen Company. Decorazione corpo e cappuccio.

• Patent US-D186445, applied in 1958, by William L. Marynissen, Waterman. Fermaglio.

• Patent US-2935044, applied in 1959, by Raymond L. Spaulding et al, The Parker Pen Company. Alimentatore e caricamento a capillarità.

• Patent US-D187831, applied in 1959, by Edmund F. Buryan, W. A. Sheaffer Pen Company. Decorazione corpo e cappuccio.

• Patent US-2935967, applied in 1956, by Richard J. Mansheim, W. A. Sheaffer Pen Company. Variante snorkel filler.

• Patent US-2935969, applied in 1955, by Theodor Kovacs, Günther Wagner - Pelikan. Alimentatore.

• Patent FR-1222185, applied in 1958, Mentmore. Alimentatore.

• Patent FR-1222991, applied in 1958, Mentmore. Sistema di caricamento.

• Patent US-D188265, applied in 1959, by William E. Bunn, Lynn P. Martin, W. A. Sheaffer Pen Company. Pennino intarsiato.

• Patent US-D188266, applied in 1959, by William E. Bunn, Lynn P. Martin, W. A. Sheaffer Pen Company. Corpo della PFM.

• Patent US-D188267, applied in 1959, by William E. Bunn, Lynn P. Martin, W. A. Sheaffer Pen Company. Cappuccio della PFM.

• Patent US-2942576, applied in 1955, by Richard J. Mansheim, W. A. Sheaffer Pen Company. Snorkel a capillarità.

• Patent GB-842854, applied in 1955, by Derrick John Silver, Mentmore. Sistema di caricamento.

• Patent US-D188637, applied in 1959, by Homer T. Green, The Parker Pen Company. Sezione Parker 45.

• Patent US-2949887, applied in 1956, by Elmer D. Thompson et al, W. A. Sheaffer Pen Company. Stilografica retrattile.

• Patent US-2949888, applied in 1955, by Lynn P. Martin, W. A. Sheaffer Pen Company. Snorkel a capillarità.

• Patent US-2951465, applied in 1955, by Karl Weisser, Morris Levy, Wearever. Penna a sfera.

• Patent US-2956548, applied in 1958, by Roger Perraud, JiF, Waterman. Sistema di caricamento.

• Patent DE-1092808, applied in 1957, by Schau Wilhelm, Compaktor. Meccanismo per la stampa.

• Patent US-2961999, applied in 1953, by Aldo Torchi, Fabbrica Italiana Penne a Serbatoio Aurora. Caricamento a cartuccia.

• Patent CH-350570, applied in 1955, by Josef C. Lamy, Lamy. Alimentatore.

• Patent US-2964012, applied in 1956, by Julius M. Kahn, Morris Levy, Wearever. Sezione per cartuccia.

1961

• Patent CH-351863, applied in 1958, by Roger Perraud, JiF, Waterman. Sistema di caricamento.

• Patent GB-860294, applied in 1957, Pilot. Alimentatore.

• Patent DE-974635, applied in 1950, by Josef C. Lamy, Lamy. Corpo a finestrelle trasparenti.

• Patent US-2979030, applied in 1957, by William J. Harrington, The Parker Pen Company. Rivestimento isolante.

• Patent CH-353996, applied in 1958, by Derrick John Silver, Mentmore. Alimentatore.

• Patent US-2983254, applied in 1958, by Derrick John Silver, Mentmore. Alimentatore.

• Patent US-2986119, applied in 1956, by Ernst Rösler, Konrad Kressel, Montblanc. Penna a sfera.

• Patent US-2987044, applied in 1955, by Donald H. Young, Waterman. Montaggio pennino CF.

• Patent US-D191555, applied in 1958, by Kenneth Parker, The Parker Pen Company. Sezione Parker VP.

• Patent GB-885374, applied in 1958, by Herbert Gesaja Ochs, Conway Stewart. Alimentatore.

• Patent GB-885375, applied in 1958, by Herbert Gesaja Ochs, Conway Stewart. Pennino coperto.

1962

• Patent GB-896958, applied in 1960, by Ryujiro Uchida, Pilot. Sistema di caricamento.

• Patent US-3038506, applied in 1961, by Robert L. Kuranz, The Parker Pen Company. Caricamento a capillarità.

• Patent FR-1296072, applied in 1961, Stylomine. Regolatore alimentazione cartuccia.

• Patent US-3041693, applied in 1960, by Albert E. Simon Jr., Harold E. Steinberg, Esterbrook. Fermaglio.

• Patent GB-903559, applied in 1957, by Derrick John Silver, Mentmore. Sistema di caricamento.

• Patent GB-903560, applied in 1957, by Derrick John Silver, Mentmore. Sistema di caricamento.

1963

• Patent US-D194412, applied in 1960, by Wilhelm Karl Friedrich Grube, Friedrich Otto Grube, Kaweco. Sezione pennino coperto.

• Patent DE-1865842U, applied in 1962, Geha. Dispositivo di pulizia del canale di alimentazione.

• Patent DE-1145054, applied in 1955, by Umberto Legnani, LUS. Caricamento a cartuccia.

• Patent US-3087464, applied in 1959, by Frederick R. Wittnebert, Clemens A. Sonntag, The Parker Pen Company. Costruzione modulare.

• Patent GB-927251, applied in 1958, by Derrick John Silver, Mentmore. Alimentatore.

• Patent US-D195385, applied in 1960, by Homer T. Green, The Parker Pen Company. Pennino Parker 45.

• Patent AT-229755, applied in 1960, by Theodor Kovacs, Günther Wagner - Pelikan. Penna a stilo.

• Patent US-D196993, applied in 1961, by Homer T. Green, The Parker Pen Company. Cartuccia.

• Patent US-D205872, applied in 1961, by Kenneth Parker, The Parker Pen Company. Decorazione ciselé.

1964

• Patent US-3116719, applied in 1962, by Derrick John Silver, Mentmore. Caricamento a capillarità.

• Patent DE-1161500, applied in 1958, Geha. Pennino incastonato.

• Patent GB-948431, applied in 1958, by Derrick John Silver, Mentmore. Alimentatore.

• Patent FR-1355256, applied in 1962, Pilot. Meccanismo della Capless.

• Patent US-3134362, applied in 1960, by Homer T. Green, The Parker Pen Company. Doppio caricamento.

• Patent FR-1374829, applied in 1963, Geha. Sistema per sezione ad impugnatura variabile.

• Patent US-3154055, applied in 1960, by Ray A. Lawton, The Parker Pen Company. Alimentatore.

• Patent GB-975244, applied in 1962, Pilot. Meccanismo della Capless.

1965

• Patent US-3175261, applied in 1963, by Hajime Ishida, Pilot. Montaggio fermaglio.

• Patent US-3203403, applied in 1962, by Yasuo Ikeda et al, Pilot. Meccanismo della Capless.

• Patent NL-300030, applied in 1963, Geha. Sistema per sezione ad impugnatura variabile.

• Patent FR-1411807, applied in 1964, Bayard. Cartuccia doppia e singola.

• Patent DE-1924743U, applied in 1965, Geha. Sistema antisdrucciolo.

• Patent DE-1925124U, applied in 1965, Geha. Impugnatura della sezione.

1966

• Patent GB-1017342, applied in 1961, Fabbrica Italiana Penne a Serbatoio Aurora. Cartucce di inchiostro.

• Patent GB-1017343, applied in 1961, Fabbrica Italiana Penne a Serbatoio Aurora. Cartucce di inchiostro.

• Patent GB-1017991, applied in 1961, by Derrick John Silver, Mentmore. Caricamento a capillarità.

• Patent DE-1213295, applied in 1957, Mentmore. Sistema di caricamento.

• Patent DE-1935399U, applied in 1966, Geha. Cappuccio e controcappuccio.

• Patent DE-1935895U, applied in 1966, Geha. Cappuccio a pressione.

• Patent DE-1215025, applied in 1960, Geha. Caricamento a cartuccia.

• Patent CH-412627, applied in 1963, by Heinrich Hartmann, Geha. Sistema per sezione ad impugnatura variabile.

• Patent GB-1039667, applied in 1964, by Edwards Ernest Ethelbert, Conway Stewart. Serbatoio ricaricabile.

• Patent CH-419896, applied in 1962, by Yasuo Ikeda et al, Pilot. Meccanismo della Capless.

• Patent DE-1947421U, applied in 1965, by Heinrich Hebborn, Walter Anweiler, Luxor. Penna a stilo.

• Patent DE-1947423U, applied in 1966, by Heinrich Hebborn, Walter Anweiler, Luxor. Penna a stilo.

• Patent US-3280797, applied in 1965, by Shunichi Nakata, Platinum. Meccanismo tipo-Capless.

• Patent US-3292593, applied in 1963, by Tetsuo Furuya, Pilot. Meccanismo della Capless.

• Patent US-3292596, applied in 1963, by Hajime Ishida, Pilot. Montaggio gruppo pennino.

1967

• Patent GB-1058094, applied in 1964, by Edwards Ernest Ethelbert, Conway Stewart. Molletta per carte.

• Patent DE-1234578, applied in 1958, JiF, Waterman. Sistema di caricamento.

• Patent DE-1237464, applied in 1961, Geha. Caricamento a cartuccia.

• Patent AT-253976, applied in 1963, Geha. Sistema per sezione ad impugnatura variabile.

1968

• Patent FR-1531571, applied in 1961, Fabbrica Italiana Penne a Serbatoio Aurora. Cartucce di inchiostro.

• Patent DE-1274927, applied in 1962, by Yasuo Ikeda et al, Pilot. Meccanismo della Capless.

• Patent DE-1275410, applied in 1963, Geha. Sistema per sezione ad impugnatura variabile.

• Patent US-3399946, applied in 1966, by Katsuji Iwasaki et al, Pilot. Meccanismo della Capless.

• Patent DE-1278284, applied in 1965, by Heinrich Hebborn, Walter Anweiler, Luxor. Penna a stilo.

• Patent DE-1283704, applied in 1966, by Heinrich Hebborn, Walter Anweiler, Luxor. Penna a stilo.

1969

• Patent GB-1150333, applied in 1967, by Edwards Ernest Ethelbert, Conway Stewart. Penna a sfera.

• Patent US-3442597, applied in 1965, by Heinrich Hebborn, Walter Anweiler, Luxor. Penna a stilo.

1970

• Patent US-3532436, applied in 1966, by Fritz König, Montblanc. Alimentatore.

• Patent US-3539267, applied in 1968, by Josef C. Lamy, Lamy. Sistema di caricamento.

1971

• Patent US-D220663, applied in 1970, by Homer T. Green, The Parker Pen Company. Pennino della Parker T1.

• Patent GB-1255389, applied in 1969, by Brook Arthur Denis, Conway Stewart. Penna a sfera.

1972

• Patent DE-1786449, applied in 1965, by Heinrich Hebborn, Walter Anweiler, Luxor. Penna a stilo.

• Patent US-D223130, applied in 1970, by Homer T. Green, The Parker Pen Company. Design della Parker T1.

1979

• Patent US-D252464, applied in 1977, by Elmer D. Thompson, Martin E. Wachs, The Parker Pen Company. Sezione Parker 50.