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Patents > CPCs : CPC B64C13/24 or CPC B64C2700/6218 or CPC B64C39/005

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Tech fields:
stability (177) · None (158) · airplane (155) · automatic stability (76) · design (54) · propulsion (51) · frame (47) · control (45) · aerodynamics (35) · navigation (34) · Wings (33) · equilibrium (26) · construction (22) · LTA (21) · rudder (20) · propeller (19) · lift (18) · Subsystem (17) · propellers (17) · landing (17)
Full specification filed date:
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Supplementary to patent:
None (360) · Patent FR-1914-475066 (3) · Patent GB-1909-8531‎ (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent CA-1909-126457 (2) · Patent FR-1910-435648 (2) · Patent FR-1910-423998 (2) · Patent FR-1912-450608 (2) · Patent FR-1909-408872 (2) · Patent FR-1902-326476 (2) · Patent DE-1910-04-04 August Wendtland (2) · Patent HU-1913-Pédery-Varsányi-Zoltán (2) · Patent IT-1909-09-10-Romagnoli (2) · Patent GB-1911-12188 (2) · Patent NZ-1909-25865 (2) · Patent BE-1912-08-13-Panian (2) · Patent US-1916-1208684 (2) · Patent US-1913-1203221 (2)
Related to aircraft:
Patent agent:
None (180) · None (17) · Armengaud jeune (12) · Munn & Co. (11) · E. Blétry (7) · Marks & Clerk (6) · H. D. Fitzpatrick & Co. (5) · Boult, Wade & Tennant (5) · Herbert Haddan & Co. (5) · Brandon frères (5) · J. Fayollet (5) · Charles Dony (4) · J. Bonnet-Thirion (4) · Abel & Imray‎ (4) · P. Follin (4) · J. Bonnet-Thirion et Breton (4)
National tech categories:
None (194) · FR 6.4 (150) · USPC 244/76R (21) · USPC 244/20 (21) · USPC 244/70 (17) · USPC 244/9 (13) · FR 6.3 (7) · USPC 244/90R (6) · USPC 244/19 (5) · DE 77h.5 (4) · USPC 244/39 (4) · USPC 244/38 (3) · USPC 244/80 (3) · USPC 244/904 (3) · USPC 244/119 (3)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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