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Patents > CPCs : CPC B64C25/42 or CPC B64C35/00 or CPC B64C39/005

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Tech fields:
None (222) · airplane (52) · frame (51) · hydroaeroplane (50) · propulsion (47) · marine (31) · hydroplane (31) · hybrid (30) · design (26) · navigation (25) · propeller (20) · LTA (20) · stability (19) · landing (17) · takeoff (16) · wheels (16) · construction (16) · wings (13) · helicopter (12)
Full specification filed date:
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Supplementary to patent:
None (364) · Patent US-1913-1094989 (3) · Patent FR-1912-455471 (3) · Patent FR-1910-426487 (3) · Patent BE-1912-02-27 Caudron (3) · Patent FR-1916-493411 (3)
Related to aircraft:
Patent agent:
None (195) · Munn & Co. (12) · John P. Tarbox (11) · Boult, Wade & Tennant (10) · Armengaud jeune (9) · Marks & Clerk (8) · J. Bonnet-Thirion et Breton (7) · None (7) · Dupont et Elluin (5) · Louis Tailfer (5) · Brewer & Son (5) · M. Zerolo (4) · Weismann et Marx (4) · Edward Evans & Co. (4) · Dom. Casalonga (4)
National tech categories:
None (231) · FR 6.4 (93) · USPC 244/20 (21) · USPC 244/70 (17) · DE 77h.9 (15) · USPC 244/9 (13) · FR 6.3 (7) · USPC 244/105 (7) · USPC 244/101 (5) · DE 77h.5 (5) · USPC 244/19 (5) · USPC 244/39 (4) · USPC 244/119 (4) · USPC 244/110H (3) · USPC 244/90R (3) · USPC 244/87 (3)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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