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Patents > IPCs : IPC B64C17/00 or IPC B64C39/04

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stability (357) · Airplane (281) · automatic stability (167) · Design (85) · control (82) · aerodynamics (65) · None (62) · equilibrium (55) · frame (47) · wings (47) · subsystem (43) · construction (31) · pendulum (31) · rudder (28) · lift (24) · Steering (20) · balance (17) · propellers (16)
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None (321) · Patent FR-1908-396249 (5) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1910-415470 (3) · Patent FR-1912-442419 (3) · Patent GB-1909-8531 (3) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent DE-1911-11-16 Otto Albin Budig (3)
Related to aircraft:
Patent agent:
None (101) · None (33) · Armengaud jeune (25) · E. Blètry (15) · Marks & Clerk (13) · Charles Dony (11) · J. Bonnet-Thirion (11) · Matray frères et Cie (10) · Lavoix et Mosès (9) · J. Germain (9) · P. Follin (8) · Haseltine, Lake & Co. (8) · Abel & Imray (8) · L. Chassevent (7) · Hippolyte Josse (7) · Schwab (7) · Herbert Haddan & Co. (7) · J. Fayollet (6) · Brandon frères (6) · Paul Coulomb (6)
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