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Patents > CPCs : CPC B64C17/00 or CPC B64C2700/6246 or CPC B64C2700/6256

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Tech fields:
stability (468) · airplane (384) · None (352) · automatic stability (200) · Control (147) · Design (108) · Aerodynamics (82) · frame (76) · wings (68) · Equilibrium (67) · Subsystem (63) · steering (58) · rudder (57) · construction (45) · lift (38) · pendulum (36) · navigation (36) · balance (26) · aileron (24) · propellers (23)
Full specification filed date:
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Supplementary to patent:
None (791) · Patent GB-1909-8531 (5) · Patent FR-1908-396249 (5) · Patent US-1908-1077750 (4) · Patent US-1908-1081147 (3) · Patent FR-1910-415470 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1912-442419 (3) · Patent US-1908-989022 (3) · Patent US-1908-935766 (3) · Patent FR-1911-446282 (3) · Patent FR-1909-399456 (3) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3)
Related to aircraft:
Patent agent:
None (405) · None (41) · Armengaud jeune (36) · Marks & Clerk (22) · E. Blétry (18) · Abel & Imray (14) · Victor J. Evans (13) · Charles Dony (12) · Haseltine, Lake & Co. (11) · J. Bonnet-Thirion (11) · Brewer & Son (10) · P. Follin (10) · Matray frères et Cie (10) · L. Chassevent (9) · J. Germain (9) · Munn & Co. (9) · Weismann et Marx (9)
National tech categories:
None (450) · FR 6.4 (425) · USPC 244/80 (60) · DE 77h.5 (24) · USPC 244/93 (20) · USPC 244/177 (13) · USPC 244/92 (8) · USPC 244/90R (8) · FR 6.3 (4) · USPC 244/91 (4) · USPC 244/87 (4) · USPC 244/113 (4) · USPC 244/88 (3) · USPC 244/139 (3) · USPC 244/231 (2) · USPC 244/100R (2) · USPC 244/233 (2) · USPC 244/234 (2) · USPC 244/89 (2) · USPC 244/82 (2)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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