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Patents > IPCs : IPC B64C17/00 or IPC B64C33/00 & Number of text pages: 3-8

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Tech fields:
stability (151) · None (118) · airplane (111) · automatic stability (48) · control (38) · frame (28) · design (27) · Equilibrium (23) · wings (23) · subsystem (21) · flapping (19) · rudder (16) · aerodynamics (16) · ornithopter (16) · steering (15) · Propulsion (13) · Lift (13) · pendulum (13) · construction (11)
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None (218) · Patent FR-1908-396249 (5) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent DE-1911-11-16 Otto Albin Budig (3)
Related to aircraft:
Patent agent:
None (55) · Armengaud jeune (17) · Marks & Clerk (15) · None (14) · E. Blètry (12) · Matray frères et Cie (7) · L. Chassevent (7) · Weismann et Marx (7) · Lavoix et Mosès (7) · J. Bonnet-Thirion (6) · Société A. Frey et de Carsalade (5) · Herbert Haddan & Co. (5) · P. Follin (5) · Lewis William Goold (5) · Schwab (5)
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