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Patents > IPCs : IPC B64B1/58 or IPC B64C17/00 & Number of claims: 2-5

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stability (154) · airplane (113) · automatic stability (67) · LTA (58) · control (37) · frame (36) · design (32) · None (24) · subsystem (21) · equilibrium (21) · construction (19) · aerodynamics (18) · rudder (17) · balance (13) · pendulum (12) · wings (12) · airship (12) · navigation (11) · steering (11) · balloon (11)
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None (174) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent BE-1912-08-13-Panian (2) · Patent FR-1910-415470 (2) · Patent FR-1909-408872 (2) · Patent FR-1908-396249 (2) · Patent HU-1909-49726 (2) · Patent DE-1912-08-22 (2) · Patent DE-1911-11-16 Otto Albin Budig (2) · Patent DE-1910-243485 (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent BE-1911-05-15 Georges de Bothezat (2) · Patent US-1915-1149680 (2) · Patent BE-1907-11-22 Albert Jouveneau (2) · Patent FR-1912-442419 (2)
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None (42) · Armengaud jeune (17) · Marks & Clerk (15) · None (12) · E. Blétry (8) · Schwab (8) · Haseltine, Lake & Co. (7) · Lavoix et Mosès (7) · Charles Dony (7) · Matray frères et Cie (6) · L. Chassevent (6) · Herbert Haddan & Co. (6) · Rigot et Prévost (5) · Société A. Frey et de Carsalade (5) · Paul Coulomb (5) · Brandon frères (5) · Dupont et Elluin (4) · Boult, Wade & Tennant (4)
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