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Patents > CPCs: CPC B64C23/005

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None (205) · airplane (95) · propulsion (66) · helicopter (45) · frame (44) · propeller (44) · hybrid (43) · navigation (43) · stability (30) · design (30) · Propellers (26) · ascension (23) · takeoff (20) · lift (19) · wings (17) · LTA (17) · construction (17) · whole (14) · Control (14) · rudder (13)
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None (355) · Patent FR-1909-410140 (5) · Patent DE-1909-220044 (2) · Patent FR-1915-525800 (2) · Patent FR-1908-394254 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1908-407090 (2) · Patent AU-1916-630 (2) · Patent AT-1909-40038 (2)
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None (233) · None (9) · Victor J. Evans (7) · G. de Mestral et F. Harlé (5) · J. Bonnet-Thirion (4) · Paul Caquet (4) · Schwab (4) · J. Germain (4) · Munn & Co. (4) · Marks & Clerk (4) · C. Blétry‎ (3) · Boramé et Julien (3) · Armengaud jeune (3) · Matray frères et Cie (3) · W. P. Thompson & Co. (3) · Rigot et Prevost (3)
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None (182) · FR 6.4 (95) · USPC 244/6 (47) · USPC 244/66 (20) · USPC 244/12.1 (16) · USPC 244/80 (7) · USPC 244/60 (6) · USPC 244/139 (5) · USPC 244/35R (5) · USPC 244/100R (4) · DE 77 (4) · USPC 244/48 (4) · USPC 244/104R (3) · USPC 244/53R (3) · USPC 244/51 (3) · FR 6.3 (3) · USPC 244/65 (3)
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None (412)
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