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Patents > National tech categories: None & CPCs : CPC B63H1/12 or CPC B64C17/00

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None (307) · England (3) · Marseille (2) · Budapest (2) · New York (2)
Applicant is inventor:
Tech fields:
None (150) · stability (115) · airplane (77) · automatic stability (42) · Frame (21) · design (19) · control (16) · subsystem (15) · Equilibrium (15) · balance (13) · propellers (12) · pendulum (10) · Aerodynamics (10) · rudder (9) · construction (9) · propeller (9) · HTA (7) · marine (6)
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Supplementary to patent:
None (250) · Patent GB-1909-8531 (3) · Patent NZ-1909-25865 (2) · Patent FR-1911-446282 (2) · Patent FR-1910-415470 (2) · Patent FR-1914-475066 (2) · Patent FR-1909-399456 (2)
Related to aircraft:
Patent agent:
None (154) · Marks & Clerk (16) · Abel & Imray (10) · Haseltine, Lake & Co. (8) · Herbert Haddan & Co. (8) · Boult, Wade & Tennant (7) · None (7) · Lewis William Goold (5) · Munn & Co. (4) · Wheatley & Mackenzie (4) · Edward Evans & Co. (4) · Lloyd Wise & Co. (3) · J. S. Withers & Spooner (3) · A. M. & William Clark (3) · Chatwin, Herschell & Co. (3)
National tech categories: (Click arrow to add another value)
CPCs: (Click arrow to add another value)
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Citations from after 1930:
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