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Patents > CPCs : CPC B64B1/40 or CPC B64C2700/6218 or CPC F01D5/06

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Tech fields:
stability (175) · None (131) · airplane (119) · LTA (103) · automatic stability (70) · design (50) · balloon (45) · aerodynamics (36) · frame (35) · Control (31) · equilibrium (26) · Construction (22) · wings (21) · navigation (20) · rudder (18) · subsystem (15) · safety (15) · airship (14) · propellers (14)
Full specification filed date:
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Supplementary to patent:
None (337) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent DE-1910-04-04 August Wendtland (2) · Patent FR-1909-408872 (2) · Patent FR-1912-450608 (2) · Patent HU-1913-Pédery-Varsányi-Zoltán (2) · Patent IT-1909-09-10-Romagnoli (2) · Patent GB-1909-8531‎ (2) · Patent NZ-1909-25865 (2) · Patent BE-1912-08-13-Panian (2) · Patent FR-1910-423998 (2) · Patent FR-1902-321808 (2) · Patent US-1911-1003530 (2) · Patent FR-1914-475066 (2) · Patent US-1913-1203221 (2) · Patent FR-1910-435648 (2) · Patent GB-1911-2636 (2)
Related to aircraft:
Patent agent:
None (216) · Armengaud jeune (14) · None (14) · Marks & Clerk (6) · Munn & Co. (6) · E. Blétry (6) · J. Fayollet (5) · Charles Dony (5) · Lavoix et Mosès (5) · J. Bonnet-Thirion (5) · Brandon frères (5) · J. Bonnet-Thirion et Breton (4) · Hippolyte Josse (4) · Schwab (4) · Boult, Wade & Tennant (4) · P. Follin (4) · Paul Coulomb (4)
National tech categories:
None (184) · FR 6.4 (158) · USPC 244/127 (17) · USPC 244/32 (13) · USPC 244/96 (12) · USPC 416/194 (11) · USPC 244/33 (10) · DE 77 (9) · FR 6.3 (8) · USPC 244/31 (8) · DE 77h (6) · USPC 244/99 (5) · DE 77h.5 (3) · USPC 244/97 (2) · USPC 104/22 (2) · USPC 244/128 (2) · USPC 244/94 (2) · USPC 244/115 (2)
CPCs: (Click arrow to add another value)
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Citations from after 1930:
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