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Patents > CPCs : CPC B64B1/40 (ER) or CPC B64C23/005 or CPC B64C2700/6212

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Tech fields:
None (292) · Airplane (118) · stability (91) · Propulsion (56) · Frame (44) · navigation (41) · propeller (40) · helicopter (40) · hybrid (37) · Control (28) · design (26) · automatic stability (23) · propellers (22) · LTA (20) · takeoff (18) · Steering (17) · ascension (17) · lift (16) · subsystem (16)
Full specification filed date:
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Supplementary to patent:
None (468) · Patent FR-1908-396249 (5) · Patent FR-1909-410140 (5) · Patent FR-1914-476300 (2) · Patent DE-1909-220044 (2) · Patent FR-1908-394254 (2) · Patent FR-1908-407090 (2) · Patent US-1908-989022 (2) · Patent FR-1915-525800 (2) · Patent FR-1909-404954 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent US-1914-1169695 (2) · Patent AT-1909-40038 (2) · Patent AU-1916-630 (2) · Patent US-1915-1149680 (2)
Related to aircraft:
Patent agent:
None (242) · None (19) · Matray frères et Cie (10) · J. Germain (9) · E. Blètry (9) · Victor J. Evans (7) · Armengaud jeune (6) · Munn & Co. (6) · J. Bonnet-Thirion (6) · Schwab (6) · L. Chassevent (5) · Rigot et Prévost (5) · Hippolyte Josse (5) · Borame et Julien (5) · G. de Mestral et F. Harlé (5) · Marks & Clerk (5) · Paul Caquet (4) · Lavoix et Moses (4) · Herbert Haddan & Co. (4)
National tech categories:
None (226) · FR 6.4 (197) · USPC 244/6 (48) · USPC 244/66 (20) · USPC 244/12.1 (16) · USPC 244/80 (7) · USPC 244/60 (6) · DE 77h.5 (6) · DE 77 (5) · USPC 244/139 (5) · USPC 244/100R (5) · FR 6.3 (5) · USPC 244/35R (5) · USPC 244/48 (4) · USPC 244/51 (3) · USPC 244/53R (3) · USPC 244/65 (3) · USPC 244/104R (3)
CPCs: (Click arrow to add another value)
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Cites these patents:
None (570)
Citations from after 1930:
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