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Patents > National tech categories : USPC 244/151R or None & CPCs: CPC B64C17/00

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None (163) · stability (99) · Airplane (64) · automatic stability (35) · Frame (19) · Design (16) · Equilibrium (16) · control (15) · Subsystem (15) · balance (13) · Aerodynamics (10) · construction (9) · rudder (9) · pendulum (8) · Propellers (6) · HTA (5) · navigation (5) · wings (5)
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None (215) · Patent GB-1909-8531 (3) · Patent FR-1909-399456 (2) · Patent FR-1911-446282 (2) · Patent FR-1910-435648 (2) · Patent FR-1910-415470 (2) · Patent NZ-1909-25865 (2) · Patent FR-1914-475066 (2)
Related to aircraft:
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None (141) · Marks & Clerk (16) · Abel & Imray (10) · Herbert Haddan & Co. (8) · Haseltine, Lake & Co. (8) · None (7) · Lewis William Goold (5) · Wheatley & Mackenzie (4) · Boult, Wade & Tennant (4) · Lloyd Wise & Co. (4) · Edward Evans & Co. (4) · Chatwin, Herschell & Co. (3) · J. S. Withers & Spooner (3) · Dicker, Pollak & Derriman (3) · Philip Middleton Justice (3) · A. M. & William Clark (3)
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