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Patents > CPCs : CPC B64C17/00 or CPC B64C23/005 or CPC Y02T50/14

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None (1009) · Seine (18) · Paris (9) · California (7) · Loire (7) · Nord (7) · New York (6) · Meurthe-et-Moselle (5) · England (5) · Chicago (4) · Ohio (4) · Seine-et-Oise (4) · New York county (4) · Nièvre (4) · New York City (4) · Maine-et-Loire (4) · Indiana (4)
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Tech fields:
stability (501) · airplane (446) · None (346) · automatic stability (205) · design (126) · frame (112) · control (107) · aerodynamics (82) · Propulsion (81) · Wings (68) · navigation (66) · equilibrium (63) · hybrid (62) · propeller (58) · helicopter (57) · subsystem (55) · lift (51) · construction (51) · rudder (49) · propellers (47)
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National tech categories:
FR 6.4 (517) · None (390) · USPC 244/80 (64) · USPC 244/6 (47) · DE 77h.5 (24) · USPC 244/66 (20) · USPC 244/93 (19) · USPC 244/12.1 (15) · USPC 244/177 (13) · USPC 244/90R (7) · USPC 244/92 (7) · USPC 244/139 (7) · FR 6.3 (7) · USPC 244/60 (6) · USPC 244/100R (6) · USPC 244/35R (5) · DE 77 (5) · USPC 244/87 (4) · USPC 244/104R (4) · USPC 244/48 (4)
IPCs:
IPC B64C17/00 (551) · None (396) · IPC B64C1/00 (302) · IPC B64C23/00 (218) · CPC B64C17/00 (9) · IPC B64C23/005 (8) · IPC B64C3/38 (4) · IPC B64C17/04 (3) · IPC B64C3/48 (3)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (1189)
Citations from after 1930:
Number of diagram pages:

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