Drilldown: Patents

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Patents > Filing date: 1800 - 1899 & First filing: No & Number of claims: 2-3

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Office:
Inventors:
Henry Boinet (2) · Gustav Fricke (2) · Thomas Mortimer Crepar (2) · Georg Wellner (2) · F. Gaebert (2) · Edward Zarski (2) · Louis Capazza (2)
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Tech fields:
LTA (34) · propulsion (23) · frame (16) · navigation (14) · balloon (12) · car (8) · rudder (8) · parachute (6) · flapping (6) · stability (6) · propeller (6) · None (5) · wheels (5) · takeoff (5) · airplane (4) · design (4) · electricity (4)
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National tech categories:
DE 77 (17) · None (10) · USPC 244/28 (3) · HU V/h (3) · USPC 244/30 (3) · GB 4 propel & steer (2) · GB 4 without buoyant (2) · USPC 89/1.14 (2)
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Citations from after 1930:
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