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Patents > CPCs : CPC B64C11/48 or CPC B64C2700/6218 or CPC B64C2700/6281

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Tech fields:
None (210) · stability (156) · Airplane (129) · automatic stability (70) · Design (49) · helicopter (45) · propellers (35) · aerodynamics (32) · control (32) · propulsion (29) · Propeller (25) · equilibrium (25) · wings (24) · Frame (23) · construction (21) · lift (18) · subsystem (15) · ascension (12) · hybrid (12) · Sustentation (12)
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None (413) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent BE-1912-08-13-Panian (2) · Patent FR-1908-407090 (2) · Patent FR-1915-478440 (2) · Patent FR-1914-475066 (2) · Patent FR-1909-408872 (2) · Patent DE-1910-04-04 August Wendtland (2) · Patent HU-1913-Pédery-Varsányi-Zoltán (2) · Patent IT-1909-09-10-Romagnoli (2) · Patent NZ-1909-25865 (2) · Patent FR-1912-450608 (2) · Patent GB-1909-8531 (2) · Patent FR-1910-435648 (2) · Patent FR-1910-423998 (2) · Patent US-1913-1203221 (2) · Patent US-1911-1011761 (2)
Related to aircraft:
Patent agent:
None (244) · None (20) · Armengaud jeune (11) · Brandon frères (7) · J. Fayollet (6) · Munn & Co. (6) · E. Blétry (6) · J. Bonnet-Thirion (5) · Lavoix et Mosès (5) · Marks & Clerk (5) · J. Germain (5) · Boult, Wade & Tennant (4) · Schwab (4) · Dom. Casalonga (4) · J. Bonnet-Thirion et Breton (4) · Charles Dony (4) · Hippolyte Josse (4) · Herbert Haddan & Co. (4) · P. Follin (4) · J. S. Withers & Spooner (4)
National tech categories:
None (298) · FR 6.4 (181) · USPC 416/128 (7) · USPC 416/129 (7) · FR 6.3 (7) · USPC 416/200R (6) · DE 77h.5 (4) · DE 77h.6 (4) · USPC 244/65 (4) · USPC 416/123 (3) · USPC 244/17.15 (2) · USPC 416/121 (2) · DE 77h (2)
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