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Patents > CPCs : CPC B64C11/006 or CPC Y10T74/20

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None (398) · Illinois (3) · England (2) · Seine (2) · Philadelphia (2) · Pennsylvania (2) · New York (2) · New Jersey (2) · Manhattan (2) · Calvados (2) · Basse-Pyrénées (2)
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None (201) · propulsion (90) · Propellers (43) · propeller (41) · marine (28) · paddle-wheel (24) · Airplane (17) · Windmill (16) · subsystem (13) · LTA (13) · Aerodynamics (12) · Design (12) · sustentation (12) · wings (11) · aerial propeller (10) · paddle wheel (9) · feathering (8)
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None (382) · Patent FR-1909-410848 (2) · Patent AU-1909-16369 (2) · Patent GB-1911-12232 (2) · Patent DE-1912-267069 (2)
Related to aircraft:
Patent agent:
None (264) · Armengaud jeune (11) · None (11) · Munn & Co. (6) · J. Bonnet-Thirion (5) · E. Blétry (4) · Y. Rabilloud et fils (4) · Lloyd Wise & Co. (3) · L. Chassevent (3) · Boult, Wade & Tennant (3)
National tech categories:
None (291) · FR 6.4 (64) · FR 6.2 (14) · USPC 416/113 (12) · USPC 416/108 (10) · USPC 416/116 (8) · USPC 244/71 (5) · USPC 74/469 (5) · DE 77h.6 (5) · FR 5.8 (3) · FR 6.3 (3) · USPC 416/109 (2) · DE 77h.8 (2)
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