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Patents > CPCs : CPC B64C13/00 or CPC B64C31/02 & First filing: Yes

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None (157) · airplane (91) · control (73) · stability (61) · navigation (47) · rudder (43) · frame (38) · steering (34) · design (20) · wings (20) · construction (12) · Automatic stability (11) · aerodynamics (11) · propellers (10) · aileron (9) · HTA (8) · Subsystem (7) · lift (7) · LTA (7)
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None (195) · Munn & Co. (11) · Brewer & Son (9) · Marks & Clerk (8) · Armengaud jeune (6) · Haseltine, Lake & Co. (5) · Boult, Wade & Tennant (5) · Weismann et Marx (4) · Brierley & Howard (4) · Victor J. Evans (3) · None (3) · John P. Tarbox (3) · H. Boettcher fils (3)
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None (134) · FR 6.4 (47) · USPC 244/233 (34) · USPC 244/90R (31) · USPC 244/78.1 (14) · USPC 244/87 (12) · USPC 244/82 (12) · USPC 244/234 (9) · USPC 244/225 (8) · USPC 244/231 (8) · USPC 244/237 (8) · USPC 244/88 (6) · USPC 244/16 (6) · USPC 244/100R (6) · USPC 244/232 (6) · DE 77h.5 (5) · USPC 244/89 (5) · USPC 244/80 (5) · USPC 244/119 (4) · USPC 244/35R (4)
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