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Patents > CPCs : CPC B64C23/005 or CPC B64C39/005 & First filing: Yes

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None (175) · Airplane (85) · propulsion (85) · navigation (56) · frame (54) · Helicopter (49) · propeller (48) · hybrid (40) · stability (32) · LTA (28) · design (21) · rudder (17) · propellers (17) · wings (17) · HTA (16) · takeoff (15) · ascension (14) · Whole (13) · airfoil (13)
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None (166) · Munn & Co. (14) · None (14) · Victor J. Evans (9) · Armengaud jeune (4) · Marks & Clerk (4) · C. A. Snow & Co. (4) · Boramé et Julien (4) · J. Bonnet-Thirion (3) · Hughes & Young (3) · E. Blétry (3) · Paul Caquet (3) · J. Germain (3) · A. M. Wilson (3) · W. P. Thompson & Co. (3)
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None (145) · FR 6.4 (64) · USPC 244/6 (45) · USPC 244/66 (21) · USPC 244/20 (20) · USPC 244/12.1 (14) · USPC 244/70 (14) · USPC 244/9 (11) · USPC 244/60 (6) · USPC 244/39 (6) · USPC 244/48 (6) · USPC 244/80 (6) · USPC 244/139 (6) · USPC 244/119 (5) · FR 6.3 (5) · USPC 244/100R (4) · USPC 244/19 (4) · DE 77 (4) · DE 77h.5 (4)
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None (406)
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