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Patents > CPCs : CPC B64C23/005 or CPC B64C27/82

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None (349) · Seine (7) · California (4) · Nord (4) · Indiana (3) · Seine-et-Oise (3) · Aisne (3) · Chicago (3) · New York (3) · Meurthe-et-Moselle (2) · London (2) · New York county (2) · Minnesota (2) · Paris (2) · Pennsylvania (2) · the Bronx (2) · Villers-Cotterêts (2) · Gironde (2) · Maine-et-Loire (2) · Birmingham (2)
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Tech fields:
None (168) · airplane (111) · propulsion (79) · helicopter (70) · hybrid (59) · frame (56) · propeller (54) · navigation (52) · stability (38) · design (33) · propellers (31) · ascension (27) · lift (23) · takeoff (21) · LTA (20) · wings (20) · whole (17) · construction (16)
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Supplementary to patent:
None (364) · Patent FR-1909-410140 (5) · Patent DE-1909-220044 (2) · Patent FR-1915-525800 (2) · Patent AT-1909-40038 (2) · Patent FR-1908-407090 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1909-404954 (2) · Patent AU-1916-630 (2)
Related to aircraft:
Patent agent:
None (122) · None (22) · Victor J. Evans (15) · Munn & Co. (11) · W. P. Thompson & Co. (6) · G. de Mestral et F. Harlé (6) · Armengaud jeune (6) · J. Bonnet-Thirion (6) · Schwab (5) · Chassevent (4) · Marks & Clerk (4) · Paul Caquet (4) · J. Germain (4) · E. Bletry (4)
National tech categories:
FR 6.4 (134) · None (130) · USPC 244/6 (47) · USPC 244/66 (24) · USPC 244/12.1 (15) · USPC 244/17.21 (9) · USPC 244/17.19 (9) · USPC 244/80 (7) · USPC 244/139 (6) · USPC 244/60 (6) · USPC 244/65 (6) · DE 77 (6) · USPC 244/35R (6) · USPC 244/100R (5) · FR 6.3 (4) · USPC 244/17.11 (4) · USPC 416/123 (4) · USPC 244/48 (4)
CPCs: (Click arrow to add another value)
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