Drilldown: Patents

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Patents > IPCs: None & CPCs : CPC B64C17/00 or CPC B64C33/02

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Tech fields:
None (332) · stability (72) · frame (41) · airplane (40) · flapping (27) · ornithopter (20) · navigation (19) · propeller (18) · propulsion (17) · automatic stability (17) · wheels (16) · rudder (16) · wings (15) · car (9) · takeoff (8) · control (8) · LTA (7)
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Patent agent:
None (367) · Victor J. Evans (12) · Munn & Co. (10) · Charles W. Hills (3) · Jacques Lejeune (2) · Herbert W. T. Jenner (2) · Knight & Co. (2) · None (2) · Charles Hill (2) · C. A. Snow & Co. (2) · J. Bonnet-Thirion et Breton (2) · Watson E. Coleman (2) · 0 (2)
National tech categories:
None (273) · USPC 244/80 (48) · USPC 244/22 (40) · FR 6.4 (23) · USPC 244/93 (17) · USPC 244/177 (11) · USPC 244/72 (10) · USPC 244/92 (8) · USPC 244/90R (6) · DE 77 (5) · DE 77h (4) · USPC 244/233 (3) · USPC 244/139 (3) · USPC 244/113 (2) · USPC 244/91 (2) · USPC 244/89 (2) · USPC 244/64 (2) · USPC 244/133 (2)
IPCs: (Click arrow to add another value)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:

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