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Patents > National tech categories: FR 6.4 & IPCs : IPC B63B27/34 or IPC B64C17/00

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Tech fields:
Stability (259) · airplane (211) · automatic stability (132) · design (67) · Control (61) · aerodynamics (55) · wings (36) · equilibrium (34) · None (33) · subsystem (30) · Frame (28) · rudder (22) · Construction (21) · pendulum (18) · lift (17) · aileron (14) · steering (14) · sustentation (13) · cables (12)
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Supplementary to patent:
None (230) · Patent FR-1908-396249 (4) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent IT-1911-06-13 Guido Castagneris (2) · Patent FR-1909-408872 (2) · Patent FR-1910-423998 (2) · Patent FR-1912-450608 (2) · Patent DE-1910-04-04 August Wendtland (2) · Patent FR-1912-442419 (2)
Related to aircraft:
Patent agent:
None (51) · None (38) · Armengaud jeune (23) · E. Blétry (13) · Charles Dony (11) · J. Bonnet-Thirion (10) · Lavoix et Mosès (10) · J. Germain (9) · Matray frères et Cie (9) · Schwab (8) · Paul Coulomb (8) · P. Follin (8) · L. Chassevent (7) · J. Fayollet (6) · Société A. Frey et de Carsalade (6) · Hippolyte Josse (6) · Boramé et Julien (5) · Rigot et Prévost (5) · H. Boettcher fils (5)
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