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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.
Elenco dei risultati
- File:Patent-US-1755586.pdf + (Chilton Pen Company)
- File:Patent-US-1811874.pdf + (Chilton Pen Company)
- File:Patent-US-1883160.pdf + (Chilton Pen Company)
- File:Patent-US-1917185.pdf + (Chilton Pen Company)
- File:Patent-US-1923734.pdf + (Chilton Pen Company)
- File:Patent-US-2017109.pdf + (Chilton Pen Company)
- File:Patent-US-2017110.pdf + (Chilton Pen Company)
- File:Patent-US-2089449.pdf + (Chilton Pen Company)
- File:Patent-US-2102044.pdf + (Chilton Pen Company)
- File:Patent-US-2118241.pdf + (Chilton Pen Company)
- File:Patent-US-2139045.pdf + (Chilton Pen Company)
- File:Patent-US-2318950.pdf + (Chilton Pen Company)
- File:Patent-US-1292736.pdf + (Clarence E. Barret)
- File:Patent-US-950939.pdf + (Clarence E. Martling, Charles Dunn)
- File:Patent-US-D127598.pdf + (Clark Gower)
- File:Patent-FR-944423.pdf + (Claude Pirany)
- File:Patent-US-1279821.pdf + (Clements L. Argon)
- File:Patent-US-1719895.pdf + (Clinton E. Marshall)
- File:Patent-US-1783734.pdf + (Clinton E. Marshall)
- File:Patent-IT-102094.pdf + (Columbus)
- File:Patent-FR-857935.pdf + (Compagnie des Encres)
- File:Patent-GB-190804840.pdf + (Conway Stewart & Co.)
- File:Patent-GB-885375.pdf + (Conway Stewart & Co.)
- File:Patent-GB-885374.pdf + (Conway Stewart & Co.)
- File:Patent-GB-1039667.pdf + (Conway Stewart & Co.)
- File:Patent-GB-1058094.pdf + (Conway Stewart & Co.)
- File:Patent-GB-1255389.pdf + (Conway Stewart & Co.)
- File:Patent-GB-1150333.pdf + (Conway Stewart & Co.)
- File:Patent-GB-297194.pdf + (Conway Stewart & Co., Arthur Stanley Jones)
- File:Patent-GB-473481.pdf + (Conway Stewart & Co., Arthur Stanley Jones)
- File:Patent-GB-523717.pdf + (Conway Stewart & Co., Arthur Stanley Jones)
- File:Patent-GB-235447.pdf + (Conway Stewart & Co., George Frank Smith)
- File:Patent-GB-330144.pdf + (Conway Stewart & Co., James Jeff)
- File:Patent-GB-424069.pdf + (Conway Stewart & Co., James Jeff)
- File:Patent-US-1498558.pdf + (Corona Pen Company)
- File:Patent-US-1704470.pdf + (Corona Pen Company Inc.)
- File:Patent-US-1390366.pdf + (Crocker Pen Company)
- File:Patent-US-1554517.pdf + (Daniel A. O'Neill)
- File:Patent-US-827022.pdf + (David B. Kaufmann)
- File:Patent-US-827004.pdf + (David B. Kaufmann)
- File:Patent-US-19613.pdf + (David C. Field)
- File:Patent-GB-418734.pdf + (David Finburgh)
- File:Patent-US-2188662.pdf + (David J. La France)
- File:Patent-US-1807415.pdf + (David J. La France)
- File:Patent-US-D098255.pdf + (David Kahn)
- File:Patent-US-D138346.pdf + (David Kahn)
- File:Patent-US-D135890.pdf + (David Kahn)
- File:Patent-US-D084146.pdf + (David Kahn)
- File:Patent-US-D138345.pdf + (David Kahn)
- File:Patent-US-1966369.pdf + (David Kahn Inc)
- File:Patent-US-2009182.pdf + (David Kahn Inc)
- File:Patent-US-2075725.pdf + (David Kahn Inc)
- File:Patent-US-2093919.pdf + (David Kahn Inc)
- File:Patent-US-2094796.pdf + (David Kahn Inc)
- File:Patent-US-2094797.pdf + (David Kahn Inc)
- File:Patent-US-2105424.pdf + (David Kahn Inc)
- File:Patent-US-2141988.pdf + (David Kahn Inc)
- File:Patent-US-2141989.pdf + (David Kahn Inc)
- File:Patent-US-2141990.pdf + (David Kahn Inc)
- File:Patent-US-2141991.pdf + (David Kahn Inc)
- File:Patent-US-2150065.pdf + (David Kahn Inc)
- File:Patent-US-2156775.pdf + (David Kahn Inc)
- File:Patent-US-2186027.pdf + (David Kahn Inc)
- File:Patent-US-2186869.pdf + (David Kahn Inc)
- File:Patent-US-2186870.pdf + (David Kahn Inc)
- File:Patent-US-2203093.pdf + (David Kahn Inc)
- File:Patent-US-2208460.pdf + (David Kahn Inc)
- File:Patent-US-2249004.pdf + (David Kahn Inc)
- File:Patent-US-2293621.pdf + (David Kahn Inc)
- File:Patent-US-2293622.pdf + (David Kahn Inc)
- File:Patent-US-2293623.pdf + (David Kahn Inc)
- File:Patent-US-2312928.pdf + (David Kahn Inc)
- File:Patent-US-2337343.pdf + (David Kahn Inc)
- File:Patent-US-2339290.pdf + (David Kahn Inc)
- File:Patent-US-2339860.pdf + (David Kahn Inc)
- File:Patent-US-2509234.pdf + (David Kahn Inc)
- File:Patent-US-2548906.pdf + (David Kahn Inc)
- File:Patent-US-2605745.pdf + (David Kahn Inc)
- File:Patent-US-2605746.pdf + (David Kahn Inc)
- File:Patent-US-2624315.pdf + (David Kahn Inc)
- File:Patent-US-2642842.pdf + (David Kahn Inc)
- File:Patent-US-2676570.pdf + (David Kahn Inc)
- File:Patent-US-2692580.pdf + (David Kahn Inc)
- File:Patent-US-2750927.pdf + (David Kahn Inc)
- File:Patent-US-2774333.pdf + (David Kahn Inc)
- File:Patent-US-2807237.pdf + (David Kahn Inc)
- File:Patent-US-2951465.pdf + (David Kahn Inc)
- File:Patent-US-2811948.pdf + (David Kahn Inc.)
- File:Patent-US-2964012.pdf + (David Kahn Inc.)
- File:Patent-US-2153488.pdf + (David Kahn Inc.)
- File:Patent-US-D087524.pdf + (David Kahn Inc.)
- File:Patent-US-D087525.pdf + (David Kahn Inc.)
- File:Patent-US-D088299.pdf + (David Kahn Inc.)
- File:Patent-US-D141588.pdf + (David Kahn Inc.)
- File:Patent-US-D158973.pdf + (David Kahn Inc.)
- File:Patent-US-D183696.pdf + (David Kahn Inc.)
- File:Patent-US-D110810.pdf + (David Kahn Inc.)
- File:Patent-US-D123293.pdf + (David Kahn Inc.)
- File:Patent-US-D101042.pdf + (David Kahn Inc.)
- File:Patent-US-D106407.pdf + (David Kahn Inc.)
- File:Patent-US-D114095.pdf + (David Kahn Inc.)
- File:Patent-US-D121336.pdf + (David Kahn Inc.)
- File:Patent-US-D121335.pdf + (David Kahn Inc.)
- File:Patent-US-D158465.pdf + (David Kahn Inc.)
- File:Patent-US-2365473.pdf + (David Kahn Inc.)
- File:Patent-US-D120734.pdf + (David Kahn Inc.)
- File:Patent-US-D087523.pdf + (David Kahn Inc.)
- File:Patent-US-2377444.pdf + (David Kahn Inc.)
- File:Patent-US-839537.pdf + (David W. Beaumel)
- File:Patent-US-769427.pdf + (David W. Beaumel)
- File:Patent-US-1169603.pdf + (David W. Beaumel)
- File:Patent-US-1435446.pdf + (David W. Beaumel)
- File:Patent-US-507348.pdf + (David W. Beaumel)
- File:Patent-US-491795.pdf + (David W. Beaumel)
- File:Patent-US-603463.pdf + (David W. Beaumel)
- File:Patent-US-1790037.pdf + (Davide Dante Zerollo)
- File:Patent-US-1247169.pdf + (Davidson Rubber Company)
- File:Patent-US-816345.pdf + (Davidson Rubber Company)
- File:Patent-US-1472962.pdf + (De Witt - La France Co.)
- File:Patent-US-1340277.pdf + (De Witt - La France Co.)
- File:Patent-US-1350412.pdf + (De Witt - La France Co.)
- File:Patent-US-1472963.pdf + (De Witt - La France Co.)
- File:Patent-US-1517411.pdf + (De Witt - La France Co.)
- File:Patent-US-1537226.pdf + (De Witt - La France Co.)
- File:Patent-US-1423603.pdf + (De Witt - La France Co.)
- File:Patent-US-1434684.pdf + (De Witt - La France Co.)
- File:Patent-US-1473215.pdf + (De Witt - La France Co.)
- File:Patent-US-1328215.pdf + (De Witt C. Van Valer, Hobart W. Geyer)
- File:Patent-US-1300849.pdf + (De Witt La France Co.)
- File:Patent-US-1490735.pdf + (De Witt-La France Company)
- File:Patent-US-1488385.pdf + (De Witt-La France Company)
- File:Patent-US-1504747.pdf + (De Witt-La France Company)
- File:Patent-US-2418410.pdf + (Denison B. Hull)
- File:Patent-US-361493.pdf + (Dewitt C. Demarest)
- File:Patent-US-340865.pdf + (Dewitt C. Demarest)
- File:Patent-US-408000.pdf + (Dewitt C. Demarest)
- File:Patent-US-1112362.pdf + (Dewitt C. Demarest)
- File:Patent-US-353053.pdf + (Dewitt C. Demarest)
- File:Patent-US-1075631.pdf + (Diamond Point Company)
- File:Patent-US-D151661.pdf + (Donald L. Skene, Arlo S. Stoops)
- File:Patent-US-2293343.pdf + (Doyle P. Jacobs)
- File:Patent-US-1277848.pdf + (Duncan Cameron)
- File:Patent-US-940509.pdf + (Duncan Cameron)
- File:Patent-US-1375559.pdf + (Duncan Cameron)
- File:Patent-FR-483349.pdf + (Duncan Cameron)
- File:Patent-GB-113082.pdf + (Duncan Cameron)
- File:Patent-GB-101241.pdf + (Duncan Cameron)
- File:Patent-FR-20859E.pdf + (Duncan Cameron)
- File:Patent-GB-151844.pdf + (Duncan Cameron)
- File:Patent-FR-526081.pdf + (Duncan Cameron)
- File:Patent-DE-356665.pdf + (Duncan Cameron)
- File:Patent-FR-396527.pdf + (Duncan Cameron)
- File:Patent-GB-190823642.pdf + (Duncan Cameron, Albert Edward Wright, MacNiven and Cameron Waverley Works)
- File:Patent-GB-190515547.pdf + (Duncan Cameron, MacNiven and Cameron Waverley Works)
- File:Patent-GB-190809818.pdf + (Duncan Cameron, MacNiven and Cameron Waverley Works)
- File:Patent-GB-190708313.pdf + (Duncan Cameron, MacNiven and Cameron Waverley Works)
- File:Patent-GB-190828493.pdf + (Duncan Cameron, MacNiven and Cameron Waverley Works)
- File:Patent-GB-190804024.pdf + (Duncan Cameron, Waverley Works)
- File:Patent-US-174965.pdf + (Duncan Mackinnon)
- File:Patent-US-217888.pdf + (Duncan Mackinnon)
- File:Patent-US-D036798.pdf + (E. Faber Pencil Co.)
- File:Patent-US-2328116.pdf + (E. O. Weigel & sons)
- File:Patent-US-2289963.pdf + (Eagle Pencil Company)
- File:Patent-US-1358511.pdf + (Eagle Pencil Company)
- File:Patent-US-1569783.pdf + (Eagle Pencil Company)
- File:Patent-US-1622316.pdf + (Eagle Pencil Company)
- File:Patent-US-1926852.pdf + (Eagle Pencil Company)
- File:Patent-US-2059577.pdf + (Eagle Pencil Company)
- File:Patent-US-2105189.pdf + (Eagle Pencil Company)
- File:Patent-US-2133617.pdf + (Eagle Pencil Company)
- File:Patent-US-2148236.pdf + (Eagle Pencil Company)
- File:Patent-US-2170242.pdf + (Eagle Pencil Company)
- File:Patent-US-2225864.pdf + (Eagle Pencil Company)
- File:Patent-US-2263299.pdf + (Eagle Pencil Company)
- File:Patent-US-2328143.pdf + (Eagle Pencil Company)
- File:Patent-US-2331606.pdf + (Eagle Pencil Company)
- File:Patent-US-2422351.pdf + (Eagle Pencil Company)
- File:Patent-US-785653.pdf + (Eagle Pencil Company)
- File:Patent-US-785654.pdf + (Eagle Pencil Company)
- File:Patent-US-907722.pdf + (Eagle Pencil Company)
- File:Patent-US-954415.pdf + (Eagle Pencil Company)
- File:Patent-US-1051670.pdf + (Eagle Pencil Company)
- File:Patent-US-1051671.pdf + (Eagle Pencil Company)
- File:Patent-US-1198994.pdf + (Eagle Pencil Company)
- File:Patent-US-1205847.pdf + (Eagle Pencil Company)
- File:Patent-US-1213725.pdf + (Eagle Pencil Company)
- File:Patent-US-1216732.pdf + (Eagle Pencil Company)
- File:Patent-US-1262438.pdf + (Eagle Pencil Company)
- File:Patent-US-1284718.pdf + (Eagle Pencil Company)
- File:Patent-US-2432061.pdf + (Eagle Pencil Company)
- File:Patent-US-2022416.pdf + (Eagle Pencil Company)
- File:Patent-US-D119006.pdf + (Eagle Pencil Company)
- File:Patent-US-599616.pdf + (Eagle Pencil Company)
- File:Patent-US-D039560.pdf + (Eagle Pencil Company)
- File:Patent-US-1153754.pdf + (Eagle Pencil Company)
- File:Patent-US-D112283.pdf + (Eagle Pencil Company)
- File:Patent-US-D047595.pdf + (Eagle Pencil Company)
- File:Patent-US-D146181.pdf + (Eberhard Faber Corporation)
- File:Patent-US-D124266.pdf + (Eberhard Faber Pencil Co.)
- File:Patent-GB-685706.pdf + (Eclipse Fountain Pen and Pencil Company)
- File:Patent-CA-358526.pdf + (Eclipse Fountain Pen and Pencil Company)
- File:Patent-CA-477244.pdf + (Eclipse Fountain Pen and Pencil Company)
- File:Patent-US-632320.pdf + (Edgar E. Nelthorpe, George H. Williamson)
- File:Patent-US-1320393.pdf + (Edmund M. Houston, William A. Houston)
- File:Patent-GB-100592.pdf + (Edmund Moster & Co.)
- File:Patent-DE-338340.pdf + (Edmund Moster & Co.)
- File:Patent-FR-512990.pdf + (Edmund Moster & Co.)
- File:Patent-DE-384550.pdf + (Edmund Moster & Co.)
- File:Patent-DE-337310.pdf + (Edmund Moster & Co. A. G.)
- File:Patent-DE-387264.pdf + (Edmund Moster & Co. A.-G.)
- File:Patent-DE-391847.pdf + (Edmund Moster & Co. Akt.-Ges.)
- File:Patent-AT-87532B.pdf + (Edmund Moster & Co. Aktien Gesellschaft)
- File:Patent-AT-65330B.pdf + (Edmund Moster & Co., Aktien Gesellschaft in Agram)
- File:Patent-GB-191101051.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-GB-190814947.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-FR-395879.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-AT-38995.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-CH-45651.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-AT-56132B.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-AT-63461B.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-FR-423826.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-FR-15507E.pdf + (Edmund Moster, Mavro Moster)
- File:Patent-GB-191210727.pdf + (Edmund Moster, Mavro Moster, Eduard Penkala)
- File:Patent-FR-363394.pdf + (Eduard Penkala)
- File:Patent-DE-183242.pdf + (Eduard Penkala)
- File:Patent-DE-176702.pdf + (Eduard Penkala)
- File:Patent-FR-06524E.pdf + (Eduard Penkala)
- File:Patent-GB-190603690.pdf + (Eduard Penkala)
- File:Patent-AT-31184.pdf + (Eduard Penkala)
- File:Patent-DK-09918.pdf + (Eduard Penkala)
- File:Patent-DK-09144.pdf + (Eduard Penkala)
- File:Patent-GB-190616715.pdf + (Eduard Penkala)
- File:Patent-CH-36513.pdf + (Eduard Penkala)
- File:Patent-CH-37618.pdf + (Eduard Penkala)
- File:Patent-AT-31185.pdf + (Eduard Penkala)
- File:Patent-GB-190812001.pdf + (Eduard Penkala)
- File:Patent-AT-36998.pdf + (Eduard Penkala)
- File:Patent-DE-193717.pdf + (Eduard Penkala)
- File:Patent-DE-121245.pdf + (Eduard Reisert)
- File:Patent-CH-13885.pdf + (Eduard Reisert)
- File:Patent-CH-282E.pdf + (Eduard Reisert)
- File:Patent-US-803927.pdf + (Eduard Reisert)
- File:Patent-US-673451.pdf + (Eduard Reisert)
- File:Patent-US-655736.pdf + (Eduard Reisert)
- File:Patent-US-634029.pdf + (Eduard Reisert)
- File:Patent-GB-190308198.pdf + (Eduard Reisert)
- File:Patent-GB-190023217.pdf + (Eduard Reisert)
- File:Patent-GB-190006677.pdf + (Eduard Reisert)
- File:Patent-GB-189902000.pdf + (Eduard Reisert)
- File:Patent-FR-333684.pdf + (Eduard Reisert)
- File:Patent-DK-2722C.pdf + (Eduard Reisert)
- File:Patent-DK-1592C.pdf + (Eduard Reisert)
- File:Patent-AT-7500B.pdf + (Eduard Reisert)
- File:Patent-AT-3719B.pdf + (Eduard Reisert)
- File:Patent-AT-398B.pdf + (Eduard Reisert)
- File:Patent-AT-179B.pdf + (Eduard Reisert)
- File:Patent-US-333104.pdf + (Edward A. Brandeburg)
- File:Patent-US-1607048.pdf + (Edward Bergquist)
- File:Patent-US-1180424.pdf + (Edward G. Peck)
- File:Patent-US-523234.pdf + (Edward G. Peck, Frederick O'Meara)
- File:Patent-US-1287556.pdf + (Edward G. Woody)
- File:Patent-US-1510613.pdf + (Edward M. Slack)
- File:Patent-US-148999.pdf + (Edward Marston, Henry Kleinan)
- File:Patent-GB-412610.pdf + (Edward S. Wood, Leon H. Ashmore)
- File:Patent-US-940247.pdf + (Edward Todd & Co.)
- File:Patent-US-D019277.pdf + (Edward Todd Co.)
- File:Patent-US-D019278.pdf + (Edward Todd Co.)
- File:Patent-US-D058001.pdf + (Edward Todd Jr.)
- File:Patent-US-1531800.pdf + (Eisenstadt Manufactoring Company)
- File:Patent-US-2233846.pdf + (Eldie E. Packard)
- File:Patent-DE-376257.pdf + (Elizabeth Wade)
- File:Patent-GB-269614.pdf + (Emanuel Feldorf,Peter Andresen,Gertrude Ellen Wade)
- File:Patent-US-1988878.pdf + (Emanuel J. Sonn)
- File:Patent-GB-598726.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-414929.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-517388.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-469699.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-182620.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-621354.pdf + (Eric Ernest Samuel Wade, Charlesworth Livsey)
- File:Patent-GB-636823.pdf + (Eric Ernest Samuel Wade, Charlesworth Livsey)
- File:Patent-GB-190905849.pdf + (Ernest M. Wade)
- File:Patent-GB-191211520.pdf + (Ernest M. Wade)
- File:Patent-US-972301.pdf + (Ernest M. Wade)
- File:Patent-FR-413467.pdf + (Ernest M. Wade)
- File:Patent-GB-191502959.pdf + (Ernest M. Wade)
- File:Patent-US-1122559.pdf + (Ernest M. Wade)
- File:Patent-GB-191220490.pdf + (Ernest M. Wade)
- File:Patent-FR-462292.pdf + (Ernest M. Wade)
- File:Patent-GB-191211730.pdf + (Ernest M. Wade)
- File:Patent-GB-409074.pdf + (Ernest M. Wade)
- File:Patent-GB-238110.pdf + (Ernst Rösler)
- File:Patent-US-2517522.pdf + (Etablissement Stylomine)
- File:Patent-GB-638420.pdf + (Etablissement Stylomine)
- File:Patent-CH-259468.pdf + (Etablissement Stylomine)
- File:Patent-FR-419199.pdf + (Etablissements Mallat)
- File:Patent-FR-921200.pdf + (Etablissements Stylomine)
- File:Patent-FR-922061.pdf + (Etablissements Stylomine)
- File:Patent-FR-922060.pdf + (Etablissements Stylomine)
- File:Patent-GB-639996.pdf + (Etablissements Stylomine)
- File:Patent-FR-922792.pdf + (Etablissements Stylomine)
- File:Patent-FR-922791.pdf + (Etablissements Stylomine)
- File:Patent-CA-462708.pdf + (Etablissements Stylomine)
- File:Patent-FR-926468.pdf + (Etablissements Stylomine)
- File:Patent-FR-931799.pdf + (Etablissements Stylomine)
- File:Patent-FR-922059.pdf + (Etablissements Stylomine)
- File:Patent-CH-258612.pdf + (Etablissements Stylomine)
- File:Patent-FR-928103.pdf + (Etablissements Stylomine)
- File:Patent-US-2397229.pdf + (Eterpen S. A.)
- File:Patent-US-2400679.pdf + (Eterpen S. A.)
- File:Patent-US-2413904.pdf + (Eterpen S. A.)
- File:Patent-US-2405381.pdf + (Eterpen Sociedad Anonima Financiera)
- File:Patent-FR-453717.pdf + (Etienne Forbin)
- File:Patent-FR-568196.pdf + (Etienne Luciani-Tournon)
- File:Patent-FR-990926.pdf + (Etienne Panici et C.ie)
- File:Patent-DE-818614.pdf + (Etienne Panici et C.ie)
- File:Patent-FR-1028424.pdf + (Etienne Panici et C.ie)
- File:Patent-FR-1194847.pdf + (Etienne Panici et C.ie)
- File:Patent-FR-1411807.pdf + (Etienne Panici et C.ie)
- File:Patent-FR-379615.pdf + (Eugen Hahn, August Eberstein)
- File:Patent-GB-190713900.pdf + (Eugen Hahn, August Eberstein)
- File:Patent-US-1851257.pdf + (Eugene Le Boeuf)
- File:Patent-US-525895.pdf + (Eugene M. Gordon)
- File:Patent-FR-595963.pdf + (Eugene Moreau)
- File:Patent-GB-334913.pdf + (Eugenio Verga)
- File:Patent-IT-268327.pdf + (Eugenio Verga)
- File:Patent-US-1302783.pdf + (Evans Dollar Pen Company)
- File:Patent-US-926611.pdf + (Evelyn De La Rue)
- File:Patent-US-814805.pdf + (Evelyn De La Rue)
- File:Patent-US-2398521.pdf + (Eversharp Inc.)
- File:Patent-US-2255093.pdf + (Eversharp Inc.)
- File:Patent-US-2427243.pdf + (Eversharp Inc.)
- File:Patent-US-2274393.pdf + (Eversharp Inc.)
- File:Patent-US-2491082.pdf + (Eversharp Inc.)
- File:Patent-US-2419483.pdf + (Eversharp Inc.)
- File:Patent-US-2340359.pdf + (Eversharp Inc.)
- File:Patent-US-2427033.pdf + (Eversharp Inc.)
- File:Patent-US-2428960.pdf + (Eversharp Inc.)
- File:Patent-US-2435123.pdf + (Eversharp Inc.)
- File:Patent-US-2483329.pdf + (Eversharp Inc.)
- File:Patent-US-2749883.pdf + (Eversharp Inc.)
- File:Patent-US-D137867.pdf + (Eversharp Inc.)
- File:Patent-US-D137866.pdf + (Eversharp Inc.)
- File:Patent-US-D137860.pdf + (Eversharp Inc.)
- File:Patent-US-D139551.pdf + (Eversharp Inc.)
- File:Patent-US-2536923.pdf + (Eversharp Inc.)
- File:Patent-US-2325069.pdf + (Eversharp Inc.)
- File:Patent-US-2319802.pdf + (Eversharp Inc.)
- File:Patent-IT-330806.pdf + (FERT)
- File:Patent-DE-898866.pdf + (Fa. A. W. Faber-Castell)
- File:Patent-DE-938709.pdf + (Fa. A. W. Faber-Castell)
- File:Patent-DE-935653.pdf + (Fa. A. W. Faber-Castell)
- File:Patent-DE-958993.pdf + (Fa. F. Soennecken)
- File:Patent-DE-820253.pdf + (Fa. F. Soennecken)
- File:Patent-DE-802498.pdf + (Fa. F. Soennecken)
- File:Patent-GB-245448.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
- File:Patent-GB-288176.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
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- File:Patent-US-1714418.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
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- File:Patent-FR-38723E.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
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- File:Patent-DE-430024.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
- File:Patent-FR-610947.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
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- File:Patent-DE-616460.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
- File:Patent-CH-132052.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
- File:Patent-CA-287009.pdf + (Fabbrica Italiana di Penne a Serbatoio "Aurora")
- File:Patent-US-2480014.pdf + (Fabrique Suisse De Crayons Caran D'Ache)
- File:Patent-DE-834963.pdf + (Felger & Co. Patentstift und Metallwarenfabrik)
- File:Patent-DE-264883.pdf + (Felix Riesemberg)
- File:Patent-US-1037660.pdf + (Felix Riesenberg)
- File:Patent-US-955205.pdf + (Felix Riesenberg)
- File:Patent-US-1050295.pdf + (Felix Riesenberg)
- File:Patent-GB-191100218.pdf + (Felix Riesenberg)
- File:Patent-GB-191218716.pdf + (Felix Riesenberg)
- File:Patent-GB-118118.pdf + (Felix Riesenberg)
- File:Patent-DE-249042.pdf + (Ferdinand Gizman, Fritz Gizman)
- File:Patent-FR-911164.pdf + (Fernand Victor Désiré Albert Outrequin)
- File:Patent-DE-732603.pdf + (Firma A. W. Faber-Castell)
- File:Patent-CH-330524.pdf + (Firma A. W. Faber-Castell)
- File:Patent-DE-744671.pdf + (Firma A. W. Faber-Castell)
- File:Patent-DE-689266.pdf + (Firma F. Soennecken)
- File:Patent-DE-1679396U.pdf + (Firma F. Soennecken)
- File:Patent-CH-202572.pdf + (Firma F. Soennecken)
- File:Patent-CH-278313.pdf + (Firma F. Soennecken)
- File:Patent-AT-69881.pdf + (Firma F. Soennecken)
- File:Patent-DE-418471.pdf + (Firma F. Soennecken)
- File:Patent-DE-532849.pdf + (Firma F. Soennecken)
- File:Patent-DE-682285.pdf + (Firma F. Soennecken)
- File:Patent-DE-696573.pdf + (Firma F. Soennecken)
- File:Patent-DE-739296.pdf + (Firma F. Soennecken)
- File:Patent-DE-741104.pdf + (Firma F. Soennecken)
- File:Patent-DE-875462.pdf + (Firma F. Soennecken)
- File:Patent-DE-755511.pdf + (Firma F. Soennecken)
- File:Patent-DE-761811.pdf + (Firma F. Soennecken)
- File:Patent-DE-928276.pdf + (Firma F. Soennecken)
- File:Patent-FR-881937.pdf + (Firma F. Soennecken)
- File:Patent-DE-764096.pdf + (Firma F. Soennecken)
- File:Patent-DE-269883.pdf + (Firma F. Soennecken)
- File:Patent-DE-589001.pdf + (Firma G. Rau)
- File:Patent-DE-411627.pdf + (Firma Gebrüder Fend G.m.b.H.)
- File:Patent-DE-566195.pdf + (Firma Günther Wagner)
- File:Patent-DE-457462.pdf + (Firma Günther Wagner)
- File:Patent-CH-232386.pdf + (Firma Günther Wagner)
- File:Patent-DE-738888.pdf + (Firma Günther Wagner)
- File:Patent-CH-232147.pdf + (Firma Günther Wagner)
- File:Patent-DE-638176.pdf + (Firma J. S. Staedtler)
- File:Patent-DE-639697.pdf + (Firma J. S. Staedtler)
- File:Patent-DE-726251.pdf + (Firma J. S. Staedtler)
- File:Patent-DE-1674855U.pdf + (Firma J. S. Staedtler)
- File:Patent-FR-730165.pdf + (Firme G. Rau)
- File:Patent-FR-701215.pdf + (Firme G. Rau)
- File:Patent-FR-726288.pdf + (Firme G. Rau)
- File:Patent-DE-577248.pdf + (Firme G. Rau)
- File:Patent-DE-590795.pdf + (Firme G. Rau)
- File:Patent-DE-560539.pdf + (Firme G. Rau)
- File:Patent-FR-750757.pdf + (Firme G. Rau)
- File:Patent-US-846547.pdf + (Francis C. Brown)
- File:Patent-US-773371.pdf + (Francis C. Brown)
- File:Patent-US-819719.pdf + (Francis C. Brown)
- File:Patent-US-697975.pdf + (Francis C. Brown)
- File:Patent-US-533942.pdf + (Francis C. Brown)
- File:Patent-US-612013.pdf + (Francis C. Brown)
- File:Patent-US-949752.pdf + (Francis C. Brown)
- File:Patent-US-901948.pdf + (Francis C. Brown)
- File:Patent-US-953316.pdf + (Francis C. Brown)
- File:Patent-US-345411.pdf + (Francis C. Brown)
- File:Patent-US-750583.pdf + (Francis C. Brown)
- File:Patent-US-750430.pdf + (Francis C. Brown)
- File:Patent-US-264854.pdf + (Francis C. Brown)
- File:Patent-FR-392740.pdf + (Francis Charles Jarvis, Thomas Howard Garner)
- File:Patent-FR-411575.pdf + (Francis Charles Jarvis, Thomas Howard Garner)
- File:Patent-GB-190918450.pdf + (Francis Charles Jarvis, Thomas Howard Garner)
- File:Patent-US-984116.pdf + (Francis W. Vaughn Jr.)
- File:Patent-GB-191116434.pdf + (Francis W. Vaughn Jr.)
- File:Patent-US-2229749.pdf + (Frank E. Little)
- File:Patent-US-D082821.pdf + (Frank Furedy)
- File:Patent-US-1609567.pdf + (Frank H. Mooney)
- File:Patent-US-879296.pdf + (Frank H. Mooney)
- File:Patent-US-1302935.pdf + (Frank Le Boeuf)
- File:Patent-US-982922.pdf + (Frank M. Ashley)
- File:Patent-US-807280.pdf + (Frank M. Kegrize)
- File:Patent-US-757664.pdf + (Frank M. Kegrize)
- File:Patent-GB-190407468.pdf + (Frank M. Kegrize)
- File:Patent-US-810284.pdf + (Frank M. Kegrize)
- File:Patent-US-750546.pdf + (Frank M. Kegrize)
- File:Patent-US-734563.pdf + (Frank M. Kegrize)
- File:Patent-US-1746065.pdf + (Franklin A. Van Sant)
- File:Patent-US-673359.pdf + (Franklin S. Cooley)
- File:Patent-US-700909.pdf + (Frazer & Geyer Co.)
- File:Patent-US-772193.pdf + (Frazer & Geyer Co.)
- File:Patent-GB-399592.pdf + (Frederick Charles Bina, Francis Frederick Barrey)
- File:Patent-GB-297903.pdf + (Frederick Elsey Double)
- File:Patent-US-825442.pdf + (Frederick William Bender)
- File:Patent-US-849110.pdf + (Frederick Wm. Erickson)
- File:Patent-US-109257.pdf + (Fridolin Schifferle)