Ricerca semantica
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- Year 1941, n° US-2328580, applied in 1943, by Milton R. Pickus. Ruthenium alloy pen point.
- Year 1942, n° US-2308810, applied in 1943, by Philip C. Hull. Desk set mounting.
- Year 1942, n° US-2343991, applied in 1944, by David F. Mohns. Filling mechanism for fountain pens.
- Year 1943, n° US-2375770, applied in 1945, by Arthur O. Dahlberg. Fountain pen.
- Year 1943, n° US-2386500, applied in 1945, by Kenneth S. Parker. Desk set.
- Year 1944, n° US-2360297, applied in 1944, by Russell T. Wing. Fountain pen.
- Year 1944, n° US-2404063, applied in 1946, by Emmett Healy. Fountain pen.
- Year 1944, n° US-2392942, applied in 1946, by Lester W. Ormsby. Fountain pen cap construction.
- Year 1944, n° US-2387001, applied in 1945, by Marlin S. Baker. Fountain pen.
- Year 1944, n° US-2406330, applied in 1946, by Walter J. Heagney. Fountain pen filling unit.
- Year 1944, n° US-2403039, applied in 1946, by Marlin S. Baker. Fountain pen.
- Year 1944, n° US-2403083, applied in 1946, by Philip C. Hull. Desk set mounting.
- Year 1944, n° US-2398531, applied in 1946, by Philip C. Hull. Filling mechanism for fountain pens.
- Year 1944, n° US-2400768, applied in 1946, by David F. Mohns. Fountain pen.
- Year 1945, n° US-2417861, applied in 1947, by Arthur O. Dahlberg. Fountain pen.
- Year 1945, n° US-2512004, applied in 1950, by Russell T. Wing. Fountain pen.
- Year 1945, n° US-2581739, applied in 1952, by Russell T. Wing. Fountain pen.
- Year 1945, n° US-2506035, applied in 1950, by Kenneth S. Parker. Writing instrument.
- Year 1945, n° GB-642437, applied in 1950. Fountain pen.
- Year 1945, n° US-2522553, applied in 1950, by Frederick R. Wittnebert. Fountain pen.
- Year 1945, n° FR-969964, applied in 1950, by Frederick R. Wittnebert. Stylographe à remplissage par capillarité.
- Year 1945, n° CH-281156, applied in 1952. Füllfederhalter.
- Year 1945, n° GB-595436, applied in 1947. Fountain pen.
- Year 1945, n° CH-260100, applied in 1949. Fountain pen.
- Year 1945, n° US-2452504, applied in 1948, by Ivan D. Tefft. Writing instrument.
- Year 1945, n° US-2427068, applied in 1947, by Robert W. Randolph. Ball-point writing instrument.
- Year 1945, n° US-2427069, applied in 1947, by Robert W. Randolph. Writing instrument.
- Year 1945, n° US-2428854, applied in 1947, by Robert W. Randolph. Writing instrument.
- Year 1945, n° US-2481874, applied in 1949, by Robert W. Randolph. Ball-point writing instrument.
- Year 1945, n° US-2464104, applied in 1949, by Ivan D. Tefft. Fountain pen.
- Year 1945, n° US-2428863, applied in 1947, by Russell T. Wing. Fountain pen.
- Year 1945, n° US-2510634, applied in 1950, by Philip C. Hull. Magnetic desk set.
- Year 1945, n° US-2561923, applied in 1951, by Edward B. Harmon. Fountain pen desk set.
- Year 1945, n° US-2528327, applied in 1950, by Marlin S. Baker. Fountain pen.
- Year 1945, n° US-2580753, applied in 1952, by Herman C. Frentzel. Ball point fountain pen.
- Year 1945, n° US-2503043, applied in 1950, by Robert Gruen. Pen desk set.
- Year 1945, n° US-2510648, applied in 1950, by Laszlo Moholy-Nagy. Pen desk set.
- Year 1946, n° US-D146806, applied in 1947, by Laszlo Moholy-Nagy. Fountain pen.
- Year 1946, n° US-2484640, applied in 1949, by James A. Mustard. Mechanical pencil.
- Year 1946, n° US-2489463, applied in 1949, by William B. Reynolds. Stable blue writing ink and a dye therefor.
- Year 1946, n° US-2503080, applied in 1950, by Ivan D. Tefft, Marlin S. Baker. Mechanical pencil with push-button type lead feeding means.
- Year 1946, n° US-2503061, applied in 1950, by Laszlo Moholy-Nagy. Pen desk set.
- Year 1946, n° US-2483603, applied in 1949, by Russell T. Wing. Fountain pen.
- Year 1946, n° US-2509465, applied in 1950, by Russell T. Wing. Dual-well fountain pen.
- Year 1946, n° US-2581740, applied in 1952, by Russell T. Wing. Fountain pen.
- Year 1946, n° FR-951555, applied in 1949, by Harlan H. Zodtner, James A. Mustard. Stylographe avec dispositif de remplissage du réservoir d'encre et d'adduction de l'encre vers la surface d'écriture.
- Year 1946, n° GB-634735, applied in 1950. Fountain pen.
- Year 1946, n° US-2681041, applied in 1954, by Harlan H. Zodtner, James A. Mustard. Fountain pen.
- Year 1946, n° US-2554654, applied in 1951, by Frederick R. Wittnebert. Fountain pen.
- Year 1946, n° US-2462929, applied in 1949, by Harlan H. Zodtner. Fountain pen.
- Year 1946, n° US-2454086, applied in 1948, by Robert W. Randolph. Ball-point writing instrument.
- Year 1946, n° US-2619070, applied in 1952, by Marlin S. Baker. Ink feed and overflow collector means for fountain pens.
- Year 1947, n° US-2522554, applied in 1950, by Harlan H. Zodtner. Fountain pen.
- Year 1947, n° US-2522555, applied in 1950, by Floyd E. Bartell. Fountain pen.
- Year 1947, n° GB-646726, applied in 1950. Improvements in or relating to fountain pens.
- Year 1947, n° FR-969966, applied in 1950, by Harlan H. Zodtner et al. Stylographe aver reservoir d'encre remplissable par capillarité.
- Year 1947, n° CH-274547, applied in 1951. Füllfederhalter.
- Year 1947, n° DE-882047, applied in 1953, by Harlan H. Zodtner et al. Fuellfederhalter.
- Year 1947, n° US-2504420, applied in 1950, by Philip C. Hull, George W. Gilman. Magazine pencil with rotary lead propelling means.
- Year 1947, n° US-2528408, applied in 1950, by Harlan H. Zodtner. Fountain pen.
- Year 1947, n° US-2670711, applied in 1954, by Frederick R. Wittnebert. Fountain pen.
- Year 1948, n° US-2645205, applied in 1953, by Robert W. Randolph. Fountain pen.
- Year 1948, n° US-2598171, applied in 1952, by Philip C. Hull. Nib for writing pens.
- Year 1948, n° US-2528390, applied in 1950, by Galen H. Sayler. Writing inks.
- Year 1948, n° US-2645206, applied in 1953, by David F. Mohns. Writing pen.
- Year 1948, n° US-2620774, applied in 1952, by James A. Mustard. Fountain pen.
- Year 1948, n° US-2533082, applied in 1950, by Marlin S. Baker, Robert W. Randolph. Fountain pen cap.
- Year 1948, n° US-2528328, applied in 1950, by Marlin S. Baker, Robert W. Randolph. Clutch mechanism for mechanical pencils.
- Year 1948, n° US-2612867, applied in 1952, by Marlin S. Baker, Harlan H. Zodtner. Fountain pen.
- Year 1948, n° US-2712299, applied in 1955, by Ernst W. Rickmeyer. Fountain pen.
- Year 1948, n° US-2684052, applied in 1954, by Ernest W. Rickmeyer. Writing instrument.
- Year 1948, n° US-2702021, applied in 1955, by Ivan D. Tefft. Fountain pen.
- Year 1949, n° US-2628431, applied in 1953, by Dave Chapman. Fountain pen cleaning device.
- Year 1950, n° US-2587949, applied in 1952, by Harlan H. Zodtner. Fountain pen.
- Year 1950, n° US-2648309, applied in 1953, by Floyd E. Bartell. Fountain pen.
- Year 1951, n° US-2889810, applied in 1959, by Robert W. Randolph. Fountain pen.
- Year 1951, n° US-2708904, applied in 1955, by Nolan Kent Rhoades. Fountain pen desk set.
- Year 1952, n° US-2774332, applied in 1956, by Ivan D. Tefft. Fountain pens.
- Year 1952, n° US-2905148, applied in 1959, by Marlin S. Baker. Fountain pen.
- Year 1952, n° FR-1076270, applied in 1954, by Nolan Kent Rhoades. Stylographe à plume avec élément capillaire formant remplisseur et réservoir.
- Year 1952, n° US-2773479, applied in 1956, by Nolan Kent Rhoades. Fountain pen.
- Year 1952, n° US-D169456, applied in 1953, by Nolan Kent Rhoades. Pocket clip.
- Year 1952, n° US-2888908, applied in 1959, by Robert W. Randolph. Fountain pen.
- Year 1952, n° US-2699147, applied in 1955, by Nolan Kent Rhoades. Pen and pocket clip construction.
- Year 1953, n° US-2724367, applied in 1955, by Frederick R. Wittnebert. Fountain pens.
- Year 1953, n° US-2726639, applied in 1955, by Frederick R. Wittnebert. Fountain pen.
- Year 1953, n° US-2782763, applied in 1957, by Harlan H. Zodtner. Fountain pens.
- Year 1953, n° US-2916013, applied in 1959, by Nolan Kent Rhoades, Marlin S. Baker. Receptacle for receiving and enclosing the writing end of a fountain pen.
- Year 1954, n° US-2802450, applied in 1957, by Frederick R. Wittnebert. Fountain pens.
- Year 1954, n° US-2737927, applied in 1956, by Nolan Kent Rhoades. Fountain pen desk sets.
- Year 1955, n° US-D179425, applied in 1956, by Kenneth S. Parker. Closure cap for a writing instrument.
- Year 1956, n° US-D179053, applied in 1956, by Marlin S. Baker. Fountain pen.
- Year 1956, n° US-2871823, applied in 1959, by Marlin S. Baker. Fountain pen.
- Year 1957, n° US-2979030, applied in 1961, by William J. Harrington. Writing instruments.
- Year 1957, n° US-D185824, applied in 1959, by Warren B. Armstrong, Donald D. Furman. Finger grip for a writing instrument or the like.
- Year 1958, n° US-D191555, applied in 1961, by Kenneth Parker. Fountain pen.
- Year 1958, n° US-D185581, applied in 1959, by Clemens A. Sonntag, Lauren O. Main. Fountain pen nib.
- Year 1959, n° US-2935044, applied in 1960, by Frederick R. Wittnebert et al. Fountain pen.
- Year 1959, n° US-3087464, applied in 1963, by Frederick R. Wittnebert, Clemens A. Sonntag. Modular fountain pen.
- Year 1959, n° US-D188637, applied in 1960, by Homer T. Green. Writing instrument.