Ricerca semantica
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- Year 1910, n° US-990288, applied in 1911, by George S. Parker. Fountain-pen.
- Year 1925, n° US-D070575, applied in 1926, by George S. Parker. Design for a pencil.
- Year 1927, n° US-D076794, applied in 1928, by Walter E. Guyot. Design for a support for penholder.
- Year 1929, n° US-D081254, applied in 1930, by Kenneth S. Parker. Design for a fountain pen.
- Year 1931, n° US-D087792, applied in 1932, by Russel C. Parker. Design for a fountain pen.
- Year 1932, n° US-D088821, applied in 1932, by Joseph B. Platt, Ivan D. Tefft. Design for a fountain pen and pencil clip.
- Year 1932, n° US-D089449, applied in 1933, by Russel C. Parker. Design for a fountain pen.
- Year 1932, n° US-D089815, applied in 1933, by Ivan D. Tefft. Design for a fountain pen.
- Year 1936, n° US-D102799, applied in 1937, by Kenneth S. Parker. Design for a fountain pen or other writing implement.
- Year 1936, n° US-D102800, applied in 1937, by Kenneth S. Parker. Design for a fountain pen or other writing implement.
- Year 1936, n° US-D102801, applied in 1937, by Kenneth S. Parker. Design for a fountain pen or other writing implement.
- Year 1937, n° US-D106326, applied in 1937, by Paul M. Ressinger. Design for a fountain pen or similar article.
- Year 1937, n° US-D107708, applied in 1937, by Paul M. Ressinger, Ivan D. Tefft. Design for a fountain pen and pencil clip.
- Year 1939, n° US-D116097, applied in 1939, by Kenneth S. Parker, Marlin S. Baker. Design for a fountain pen.
- Year 1939, n° US-D116098, applied in 1939, by Kenneth S. Parker, Marlin S. Baker. Design for a fountain pen barrel.
- Year 1946, n° US-D146806, applied in 1947, by Laszlo Moholy-Nagy. Fountain pen.
- Year 1952, n° US-D169456, applied in 1953, by Nolan Kent Rhoades. Pocket clip.
- Year 1956, n° US-D179053, applied in 1956, by Marlin S. Baker. Fountain pen.
- Year 1955, n° US-D179425, applied in 1956, by Kenneth S. Parker. Closure cap for a writing instrument.
- Year 1958, n° US-D185581, applied in 1959, by Clemens A. Sonntag, Lauren O. Main. Fountain pen nib.
- 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 1959, n° US-D188637, applied in 1960, by Homer T. Green. Writing instrument.
- Year 1958, n° US-D191555, applied in 1961, by Kenneth Parker. Fountain pen.
- Year 1960, n° US-D195385, applied in 1963, by Homer T. Green. Fountain pen nib.
- Year 1961, n° US-D196993, applied in 1963, by Homer T. Green. Writing instrument ink cartridge.
- Year 1961, n° US-D205872, applied in 1963, by Kenneth Parker. Writing instrument.
- Year 1970, n° US-D220663, applied in 1971, by Homer T. Green. Fountain pen nib.
- Year 1970, n° US-D223130, applied in 1972, by Homer T. Green. Fountain pen.
- Year 1977, n° US-D252464, applied in 1979, by Elmer D. Thompson, Martin E. Wachs. Fountain pen nib.