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Patents > CPCs : CPC B27M3/10 or CPC B64C23/005 or CPC B64C2700/6212

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None (445) · Seine (10) · Nord (7) · California (4) · England (4) · Aisne (3) · New York (3) · London (3) · Indiana (3) · Paris (3) · Chicago (3) · Seine-et-Oise (3) · Meurthe-et-Moselle (3)
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Tech fields:
None (191) · airplane (155) · stability (112) · propulsion (75) · hybrid (57) · helicopter (57) · frame (49) · propeller (47) · navigation (43) · control (39) · design (38) · automatic stability (38) · propellers (37) · ascension (26) · lift (24) · LTA (22) · wings (21) · takeoff (21) · aerodynamics (20) · subsystem (20)
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Supplementary to patent:
None (438) · Patent FR-1908-396249 (5) · Patent FR-1909-410140 (5) · Patent US-1915-1149680 (2) · Patent US-1908-989022 (2) · Patent DE-1909-220044 (2) · Patent AT-1909-40038 (2) · Patent FR-1908-405961 (2) · Patent FR-1908-407090 (2) · Patent FR-1909-404954 (2) · Patent US-1908-1075533 (2) · Patent FR-1915-525800 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1914-476300 (2) · Patent AU-1916-630 (2) · Patent US-1914-1169695 (2)
Related to aircraft:
Patent agent:
None (153) · None (26) · Victor J. Evans (11) · Armengaud jeune (11) · Matray freres et Cie (10) · J. Germain (9) · E. Bletry (9) · Munn & Co. (8) · J. Bonnet-Thirion (7) · Schwab (7) · W. P. Thompson & Co. (6) · G. de Mestral et F. Harlé (6) · Herbert Haddan & Co. (5) · Borame et Julien (5) · L. Chassevent (5) · Marks & Clerk (5)
National tech categories:
FR 6.4 (217) · None (184) · USPC 244/6 (47) · USPC 244/66 (20) · USPC 244/12.1 (15) · USPC 244/80 (7) · DE 77h.5 (6) · USPC 244/60 (6) · DE 77 (5) · USPC 244/139 (5) · USPC 244/35R (5) · USPC 244/100R (5) · FR 6.3 (5) · USPC 244/48 (4) · USPC 244/51 (3) · USPC 244/104R (3) · USPC 244/65 (3)
CPCs: (Click arrow to add another value)
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