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Patents > IPCs : IPC B64C17/00 or IPC E04H 6/44 & Citations from after 1930: None

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Tech fields:
stability (287) · airplane (265) · automatic stability (143) · design (81) · Control (74) · Aerodynamics (64) · equilibrium (53) · wings (46) · frame (42) · subsystem (41) · None (34) · pendulum (28) · construction (28) · rudder (26) · lift (23) · propellers (16) · steering (15) · sustentation (14) · cables (14)
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Supplementary to patent:
None (230) · Patent FR-1908-396249 (4) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent GB-1909-8531 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1912-442419 (3)
Related to aircraft:
Patent agent:
None (99) · Armengaud jeune (24) · None (19) · Marks & Clerk (10) · E. Blétry (9) · Charles Dony (9) · J. Bonnet-Thirion (7) · Haseltine, Lake & Co. (7) · P. Follin (7) · Paul Coulomb (6) · Matray freres et Cie (6) · J. Germain (6) · Schwab (6) · Abel & Imray (6) · Lewis William Goold (5) · Lavoix et Moses (5) · J. Fayollet (5) · Brandon frères (5)
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