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Patents > IPCs : IPC B64C17/00 or IPC B64C3/54

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Tech fields:
stability (369) · airplane (316) · automatic stability (170) · design (103) · control (93) · None (83) · aerodynamics (76) · Wings (69) · frame (55) · equilibrium (55) · subsystem (47) · construction (41) · lift (37) · rudder (33) · pendulum (31) · Steering (24) · Sustentation (23) · Propellers (19) · balance (17)
Full specification filed date:
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Supplementary to patent:
None (371) · Patent FR-1908-396249 (5) · Patent GB-1909-8531 (4) · Patent FR-1908-392672 (4) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1912-442419 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1910-415470 (3)
Related to aircraft:
Patent agent:
None (115) · None (39) · Armengaud jeune (38) · E. Blétry (15) · Marks & Clerk (13) · Charles Dony (11) · J. Bonnet-Thirion (11) · Matray frères et Cie (10) · Haseltine, Lake & Co. (9) · J. Germain (9) · Abel & Imray (9) · P. Follin (8) · Lavoix et Mosès (8) · Schwab (8) · L. Chassevent (7) · Herbert Haddan & Co. (7) · Hippolyte Josse (7)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (526) · CPC B64C2700/6218 (185) · CPC B64C2700/6212 (119) · CPC B64C2700/6214 (67) · CPC B64C3/54 (53) · CPC B64C2700/6219 (35) · CPC B64C2700/6246 (17) · CPC B64C2700/6215 (16) · CPC B64C5/08 (9) · CPC B64C9/00 (7) · CPC B64C1/00 (7) · CPC B64C2009/005 (7) · CPC B64C3/546 (6) · CPC B64C2700/6211 (5) · CPC B64C13/30 (3) · CPC B64C3/48 (3)
First filing:
Citations from after 1930:
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