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Patents > Year filed: 1901 & Year granted: 1900 - 1909 & Number of figures: 3-20

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Inventors:
Viktor Tarczal (6) · Maurice Léger (5) · Edmund Roheim (4) · Augusto Severo (4) · Josef Simkó (4) · Emil Lehmann (2) · Joseph H. Dillon-Gregg (2) · Sebastian Finsterwalder (2) · Charles Groombridge (2) · Heinrich Hildebrand (2) · Burrell Cannon (2)
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None (17) · Viktor Tarczal (6) · Maurice Léger (5) · Josef Simkó (4) · Edmund Roheim (4) · Joseph H. Dillon-Gregg (2) · William Alfred South (2) · Heinrich Hildebrand (2) · Charles Groombridge (2)
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Tech fields:
LTA (22) · propulsion (15) · propeller (12) · kite (12) · Design (9) · frame (9) · airship (8) · Helicopter (6) · navigation (6) · None (6) · propellers (6) · airplane (6) · hybrid (5) · whole (5) · flapping (5)
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National tech categories:
None (20) · DE 77h (12) · HU V/h (8) · AT 77d (4) · CH 115 (3) · RU Group V (3)
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