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Patents > CPCs : CPC B64B1/40 or CPC B64C2700/6271 or CPC B64C2700/6274

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None (183) · LTA (97) · balloon (45) · Airplane (36) · stability (31) · frame (27) · propulsion (25) · Design (23) · navigation (22) · propellers (18) · construction (15) · ascension (15) · Hybrid (14) · airship (13) · car (13) · control (13) · safety (12) · Helicopter (12) · propeller (11) · Suspension (11)
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None (303) · Patent DE-1909-220044 (2) · Patent US-1911-1003530 (2) · Patent GB-1911-2636 (2) · Patent FR-1915-525800 (2) · Patent FR-1909-410140 (2) · Patent FR-1908-407090 (2) · Patent AT-1909-40038 (2) · Patent FR-1902-321808 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1908-394254‎ (2)
Related to aircraft:
Patent agent:
None (194) · None (8) · Armengaud jeune (8) · Munn & Co. (5) · Marks & Clerk (5) · J. Germain (4) · E. Bletry (4) · G. de Mestral et F. Harlé (4) · Schwab (4) · J. Bonnet-Thirion (4) · Paul Caquet (4) · Chassevent (4)
National tech categories:
None (154) · FR 6.4 (114) · USPC 244/127 (17) · USPC 244/32 (13) · USPC 244/96 (12) · DE 77 (10) · USPC 244/33 (10) · USPC 244/31 (8) · FR 6.3 (8) · DE 77h (6) · USPC 244/99 (5) · USPC 244/94 (2) · USPC 244/97 (2) · USPC 104/22 (2) · USPC 244/115 (2) · USPC 244/128 (2)
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