Drilldown: Patents

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Patents > Inventor country : ES or Hungary or None

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Inventor country: (Click arrow to add another value)
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Supplementary to patent:
None (2528) · Patent ES-1906-38692 (6) ·   (4) · Patent FR-1907-382794 (4) · Patent BE-1913-253298 (4) · Patent FR-1880-139386 (3) · Patent BE-1911-02-02 Leonardo Torres Quevedo (2) · Patent FR-1900-299924 (2) · Patent FR-1881-143264 (2) · Patent US-1913-04-21 George Raymond Lawrence (2)
Related to aircraft:
Patent agent:
None (2407) · Desnos (12) · Blétry aîné (10) · Armengaud jeune (9) · Chassevent (7) · Ed. Wolf (6) · Dieuaide (6) · Société Marillier et Robelet (6) · Duvinage (5) · Marks & Clerk (5) · None (5) · Armengaud aîné (5) · Thirion (4) · Dumas (4) · Casalonga (4) · Société Louis Gudman et Cie (4)
National tech categories:
None (2093) · FR 6.3 (172) · GB 4 propel & steer (24) · GB 4 with buoyant (20) · FR 6.4 (18) · BE K (17) · USPC 244/139 (15) · GB 4 (15) · USPC 244/147 (14) · GB 4 without buoyant (12) · USPC 244/142 (12) · USPC 244/153R (11) · FR 5 (8) · DE 77h.5 (8) · USPC 244/149 (8) · DE 77 (7) · USPC 244/53A (7) · FR 6 (6) · GB 4 aërostats (6) · MX F. III (6)
IPCs:
None (2524) · IPC B64C39/00 (10) · IPC B64B (7) · IPC B64B1/00 (6) · IPC B64C23/00 (6) · IPC B64B1/58 (5) · IPC B63H1/12 (3) · IPC B64C33/02 (3) · IPC B64C11/00 (3)
First filing:
Citations from after 1930:
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