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Patents > CPCs : CPC B64C11/006 or CPC B64C17/00 & Number of text pages: 2-3

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Tech fields:
stability (254) · airplane (199) · automatic stability (116) · None (66) · Design (66) · propulsion (60) · control (50) · aerodynamics (46) · propellers (43) · frame (38) · wings (38) · equilibrium (36) · subsystem (33) · propeller (27) · construction (26) · rudder (25) · marine (21) · pendulum (20) · navigation (20) · LTA (19)
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Supplementary to patent:
None (344) · Patent FR-1910-415470 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1912-442419 (3) · Patent FR-1911-446282 (3)
Related to aircraft:
Patent agent:
None (97) · Armengaud jeune (31) · None (22) · E. Blétry (15) · Victor J. Evans (12) · J. Bonnet-Thirion (12) · Charles Dony (8) · Abel & Imray (7) · Herbert Haddan & Co. (7) · Y. Rabilloud et fils (7) · Haseltine, Lake & Co. (6) · Lavoix et Mosès (6) · H. Bœttcher fils (6) · Boult, Wade & Tennant (6) · Marks & Clerk (6) · Rigot et Prévost (6) · P. Follin (6)
National tech categories:
FR 6.4 (275) · None (141) · USPC 244/80 (32) · DE 77h.5 (15) · USPC 244/93 (10) · FR 6.2 (10) · USPC 416/113 (9) · USPC 416/116 (6) · FR 6.3 (5) · USPC 416/108 (3) · FR 5.8 (3) · DE 77h.6 (2) · USPC 244/71 (2)
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