Drilldown: Patents

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Patents > Applicant firm: None & Tech fields : aerodynamics or propeller & Application number : 344263D or 426683D or frame or propulsion or None & IPCs : IPC B64C3/00 or IPC B64C39/00 or None

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Supplementary to patent:
None (331) · Patent GB-1909-12556 (6) · Patent GB-1911-12232 (6) · Patent DE-1899-123884 (5) · Patent CH-1912-62201 (3) · Patent FR-1904-340154 (3) · Patent ES-1911-50083‎ (3) · Patent US-1894-526394 (3) · Patent DE-1894-76727 (3) · Patent DE-1893-73799 (3) · Patent FR-1906-369937 (2) · Patent FR-1905-353709 (2) · Patent GB-1908-4519 (2) · Patent GB-1911-19430 (2) · Patent DE-1909-11-30 Attilio Robiola (2) · Patent HU-1901-22471 (2) · Patent BE-1909-12-24 Marie Jasogne and Theodor Dobresco (2) · Patent US-1906-850616 (2) · Patent US-1904-793746 (2)
Related to aircraft:
Patent agent:
None (280) · Haseltine, Lake & Co. (10) · Munn & Co. (8) · Henry Hughes (5) · E. Imer-Schneider (4) · A. Wunderlich & Cie, Ingénieurs-Conseils (4) · Jensen & Son (4) · Duvinage (3) · Abel & Imray (3) · Raclot et Cie (3) · E. Blum & Co. (3) · Arthur Otto Sachse (3) · W. D. Rowlingson (3)
National tech categories:
None (152) · BE K (35) · AT 77d (22) · IT 8 (21) · GB 4 propel & steer (21) · DE 77h.6 (15) · DE 77 (14) · GB 4 with buoyant (11) · RU Group V (8) · GB 4 without buoyant (8) · AU 90.3 (7) · HU V/h (7) · CH 129b (6) · DK 77 (6) · FR 6.3 (5) · AU 90.5 (5) · GB 4 (5) · CH 115 (5) · GB 4 framework (5)
IPCs: (Click arrow to add another value)
CPCs:
None (361) · CPC B64B1/00 (14) · CPC B64C11/006 (8) · CPC B64C39/005 (5) · CPC B64C11/48 (5) · CPC B64C23/005 (4) · CPC B64C9/00 (3) · CPC Y02E10/72 (3) · CPC F04D29/384 (3) · CPC B63H1/12 (3) · CPC B63H1/04 (3)
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Citations from after 1930:
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