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Patents > National tech categories: FR 6.4 & IPCs : IPC A63G31/00 or IPC B64C17/00

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Tech fields:
stability (245) · airplane (207) · automatic stability (129) · Design (69) · control (61) · aerodynamics (57) · wings (40) · equilibrium (35) · Subsystem (31) · None (30) · frame (28) · construction (22) · Rudder (22) · Lift (19) · pendulum (19) · aileron (14) · steering (14) · sustentation (13) · cables (12)
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Supplementary to patent:
None (216) · Patent FR-1908-396249 (4) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent DE-1910-04-04 August Wendtland (2) · Patent FR-1909-408872 (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent FR-1910-423998 (2) · Patent FR-1912-450608 (2) · Patent IT-1911-06-13 Guido Castagneris (2) · Patent FR-1912-442419 (2)
Related to aircraft:
Patent agent:
None (58) · None (28) · Armengaud jeune (24) · E. Blétry (15) · Charles Dony (11) · J. Germain (9) · J. Bonnet-Thirion (9) · Matray frères et Cie (9) · Lavoix et Moses (8) · P. Follin (8) · Hippolyte Josse (7) · L. Chassevent (7) · Paul Coulomb (6) · J. Fayollet (6) · Schwab (6) · Boramé et Julien (5) · Rigot et Prévost (5) · C. Baumann (5)
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