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Patents > Office : DE or FR & IPCs : IPC B64C17/00 or IPC B64D35/04

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Tech fields:
stability (262) · airplane (233) · automatic stability (134) · Design (75) · control (74) · aerodynamics (61) · wings (44) · None (43) · equilibrium (39) · Subsystem (35) · frame (29) · construction (27) · rudder (25) · pendulum (22) · propellers (22) · lift (21) · steering (18) · aileron (14) · sustentation (14) · propulsion (13)
Full specification filed date:
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Supplementary to patent:
None (249) · Patent FR-1908-396249 (5) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1912-450608 (2) · Patent FR-1911-438363 (2) · Patent FR-1909-408872 (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent FR-1912-442419 (2) · Patent FR-1914-476300‎‎ (2) · Patent DE-1910-04-04 August Wendtland (2) · Patent IT-1911-06-13 Guido Castagneris (2) · Patent FR-1910-423998 (2) · Patent FR-1909-401348 (2)
Related to aircraft:
Patent agent:
None (81) · None (28) · Armengaud jeune (26) · E. Blétry (18) · J. Bonnet-Thirion (13) · Charles Dony (11) · Lavoix et Mosès (10) · Matray frères et Cie (10) · J. Germain (9) · L. Chassevent (9) · P. Follin (8) · Schwab (7) · Weismann et Marx (7) · Hippolyte Josse (7) · Paul Coulomb (6) · Rigot et Prévost (6) · Brandon freres (6) · J. Fayollet (6)
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Citations from after 1930:
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