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Patents > CPCs : CPC B64C11/48 or CPC B64C2700/6274 or CPC B64C3/56

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Tech fields:
None (249) · airplane (58) · Propellers (29) · propulsion (25) · frame (25) · propeller (24) · design (23) · Wings (22) · construction (18) · Hybrid (13) · Ascension (13) · Helicopter (13) · control (11) · Lift (10) · folding (10) · stability (10) · whole (9) · Churn (8)
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Supplementary to patent:
None (364) · Patent DE-1909-220044 (2) · Patent FR-1909-402649 (2) · Patent FR-1908-407090 (2) · Patent AT-1909-40038 (2) · Patent FR-1908-394254‎ (2) · Patent FR-1915-525800 (2) · Patent FR-1909-410140 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent DE-1912-03-18 Allgemeine Elektricitäts-Gesellschaft‎‎ (2) · Patent BE 1911-04-07 Bollekens frères (2)
Related to aircraft:
Patent agent:
None (213) · None (9) · G. de Mestral et F. Harlé (6) · Armengaud jeune (6) · L. Chassevent (5) · Borame et Julien (5) · Marks & Clerk (5) · J. Germain (4) · Paul Caquet (4) · Charles Dony (4) · Munn & Co. (4) · Boult, Wade & Tennant (4) · J. Bonnet-Thirion (4) · Brewer & Son (3) · P. Follin (3) · Schwab (3) · E. Blétry (3) · C. Blétry (3)
National tech categories:
None (256) · FR 6.4 (115) · USPC 416/128 (7) · USPC 244/49 (7) · USPC 416/200R (6) · USPC 416/129 (6) · DE 77h.5 (4) · FR 10.4 (2) · USPC 244/65 (2)
CPCs: (Click arrow to add another value)
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