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Patents > CPCs : CPC B64C2700/6212 or CPC B64C2700/6274 or CPC B64C39/08

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Tech fields:
None (183) · airplane (121) · Stability (100) · control (43) · frame (36) · automatic stability (35) · propulsion (34) · Propellers (31) · design (31) · construction (22) · Hybrid (22) · Helicopter (21) · rudder (21) · ascension (19) · Lift (18) · navigation (17) · steering (17) · propeller (16) · pendulum (16) · wings (16)
Full specification filed date:
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Supplementary to patent:
None (365) · Patent FR-1908-396249 (5) · Patent DE-1909-220044 (2) · Patent US-1915-1149680 (2) · Patent US-1914-1169695 (2) · Patent US-1908-989022 (2) · Patent US-1908-1021139 (2) · Patent FR-1915-525800 (2) · Patent FR-1914-476300‎‎ (2) · Patent FR-1909-410140 (2) · Patent FR-1908-407090 (2) · Patent FR-1908-394254‎ (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent US-1915-1341029 (2) · Patent AT-1909-40038 (2)
Related to aircraft:
Patent agent:
None (151) · None (22) · E. Blètry (11) · J. Germain (9) · Matray frères et Cie (9) · Armengaud jeune (8) · Boult, Wade & Tennant (6) · J. Bonnet-Thirion (6) · L. Chassevent (6) · Hippolyte Josse (5) · Marks & Clerk (5) · Borame et Julien (5) · G. de Mestral et F. Harle (4) · Schwab (4) · Rigot et Prévost (4) · Paul Caquet (4) · G. Petiau (4) · Herbert Haddan & Co. (4) · Munn & Co. (4)
National tech categories:
FR 6.4 (189) · None (186) · USPC 244/45R (31) · USPC 244/13 (13) · DE 77h.5 (5) · USPC 244/87 (4) · USPC 244/101 (2) · USPC 244/80 (2) · USPC 244/89 (2) · USPC 244/50 (2) · USPC 244/100R (2) · FR 6.3 (2) · USPC 244/48 (2) · USPC 244/91 (2) · USPC 244/93 (2) · USPC 244/35R (2)
CPCs: (Click arrow to add another value)
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