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Patents > IPCs : IPC B64C17/00 or IPC B64C25/00

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Tech fields:
stability (349) · airplane (304) · automatic stability (157) · design (99) · Frame (83) · control (81) · landing (72) · None (67) · aerodynamics (62) · Equilibrium (54) · Subsystem (49) · Wings (49) · wheels (48) · Construction (46) · chassis (46) · rudder (29) · pendulum (29) · suspension (24) · aeroplane (24) · lift (23)
Full specification filed date:
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Supplementary to patent:
None (381) · Patent FR-1908-396249 (5) · Patent FR-1909-420322 (4) · Patent GB-1909-8531 (3) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent IT-1915-150227 (3) · Patent FR-1910-415470 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1912-442419 (3)
Related to aircraft:
Patent agent:
None (122) · Armengaud jeune (36) · None (29) · Marks & Clerk (19) · E. Blétry (18) · Charles Dony (17) · J. Bonnet-Thirion (14) · Hippolyte Josse (10) · Matray frères et Cie (10) · Weismann et Marx (9) · J. Germain (9) · Lavoix et Mosès (9) · P. Follin (8) · L. Chassevent (8) · Herbert Haddan & Co. (8) · Schwab (8) · Haseltine, Lake & Co. (8) · Abel & Imray (7) · J. Fayollet (7) · Paul Coulomb (6)
National tech categories:
FR 6.4 (397) · None (172) · USPC 244/80 (12) · USPC 244/100R (6) · DE 77h.5 (6) · DE 77h.9 (6) · FR 6.3 (3) · USPC 244/93 (3) · USPC 244/102R (3) · USPC 244/104R (3) · USPC 244/177 (2) · USPC 244/50 (2) · USPC 244/104CS (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (500) · CPC B64C2700/6218 (193) · CPC B64C2700/6212 (110) · CPC B64F2700/6226 (74) · CPC B64C25/06 (73) · CPC B64C2700/6214 (67) · CPC B64C25/62 (41) · CPC B64C2700/6219 (39) · CPC B64C25/64 (29) · CPC B64C25/52 (27) · CPC B64C25/54 (21) · CPC B64C2700/6215 (16) · CPC B64C25/60 (9) · CPC B64C2700/6211 (7) · CPC B64C25/50 (5) · CPC B64C1/00 (5) · CPC B64C25/00 (5) · CPC B64C25/14 (4) · CPC B64C25/62 B64F2700/6226 (4) · CPC B64C25/02 (4)
First filing:
Citations from after 1930:
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