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Patents > Applicant firm: None & IPCs : IPC B64C13/00 or IPC B64C17/00 or IPC B64C25/00

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Tech fields:
stability (368) · Airplane (348) · automatic stability (157) · control (141) · design (115) · Frame (92) · None (82) · aerodynamics (76) · landing (66) · wings (64) · Equilibrium (59) · subsystem (57) · rudder (52) · steering (51) · Construction (50) · wheels (44) · chassis (39) · Lift (32) · pendulum (28) · navigation (26)
Full specification filed date:
Application number:
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Supplementary to patent:
None (465) · Patent FR-1908-396249 (5) · Patent FR-1909-420322 (4) · Patent IT-1915-150227 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent FR-1910-415470 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent GB-1909-8531 (3) · Patent FR-1912-442419 (3)
Related to aircraft:
Patent agent:
None (153) · Armengaud jeune (44) · None (31) · Marks & Clerk (25) · E. Blétry (19) · Charles Dony (18) · Weismann et Marx (14) · J. Bonnet-Thirion (13) · Haseltine, Lake & Co. (11) · J. Germain (11) · Matray frères et Cie (10) · P. Follin (9) · Abel & Imray (9) · Hippolyte Josse (9) · Schwab (8) · Boult, Wade & Tennant (8) · Lavoix et Mosès (8) · Herbert Haddan & Co. (8)
National tech categories:
FR 6.4 (433) · None (210) · DE 77h.5 (20) · USPC 244/80 (11) · USPC 244/233 (8) · USPC 244/234 (6) · USPC 244/100R (6) · USPC 244/237 (4) · USPC 244/231 (4) · FR 6.3 (4) · USPC 244/87 (4) · USPC 244/104R (3) · USPC 244/225 (3) · DE 77h.9 (3) · DE 62b.15 (3) · USPC 244/89 (3) · USPC 244/93 (3) · USPC 244/102R (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (489) · CPC B64C2700/6218 (184) · CPC B64C13/00 (143) · CPC B64C2700/6212 (108) · CPC B64C2700/6256 (88) · CPC B64C2700/6214 (65) · CPC B64C25/06 (61) · CPC B64F2700/6226 (58) · CPC B64C2700/6219 (37) · CPC B64C25/62 (34) · CPC B64C25/52 (27) · CPC B64C25/64 (23) · CPC B64C25/54 (21) · CPC B64C2700/6215 (16) · CPC B64C25/60 (8) · CPC B64C2700/6259 (7) · CPC B64C2700/6211 (6)
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Citations from after 1930:
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