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Patents > Applicant firm: None & National tech categories: None & CPCs : CPC B64C11/006 or CPC B64C2700/6212 or CPC B64C2700/6218 or CPC B64C35/00

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Tech fields:
None (435) · stability (70) · Airplane (43) · automatic stability (24) · propulsion (23) · propeller (17) · paddle-wheel (14) · propellers (14) · marine (13) · control (12) · design (11) · construction (11) · hydroplane (10) · hydroaeroplane (10) · frame (10) · Subsystem (9) · balance (8) · Equilibrium (8)
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Supplementary to patent:
None (569) · Patent US-1913-1094989 (2) · Patent FR-1911-446282 (2) · Patent FR-1914-475066 (2) · Patent NZ-1909-25865 (2) · Patent FR-1910-435648 (2)
Related to aircraft:
Patent agent:
None (453) · Boult, Wade & Tennant (15) · Abel & Imray (10) · Marks & Clerk (8) · Herbert Haddan & Co. (8) · Lloyd Wise & Co. (5) · Haseltine, Lake & Co. (5) · Brewer & Son (5) · Munn & Co. (4) · Lewis William Goold (4) · Dicker, Pollak & Derriman (4) · Chatwin, Herschell & Co. (4) · Edward Evans & Co. (4) · None (4) · W. P. Thompson & Co. (3) · Hyde & Heide (3) · Wheatley & Mackenzie (3)
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