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Patents > IPCs : B64C35/00 or IPC B64B1/00 or IPC B64C33/00

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Tech fields:
LTA (377) · frame (102) · propulsion (98) · navigation (89) · balloon (87) · dirigible (58) · design (52) · airship (52) · stability (51) · hybrid (50) · Construction (40) · flapping (40) · airplane (40) · propeller (35) · car (34) · safety (32) · Dirigibles (32) · Balloons (29) · Wings (27) · rigid (27)
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Supplementary to patent:
None (422) · Patent FR-1913-472867 (4) · Patent FR-1913-467415 (3) · Patent AT-1912-75092 (3) · Patent ES-1906-38692 (3) · Patent CH-1909-48028 (2) · Patent FR-1914-472867.19895 (2) · Patent FR-1907-382794 (2) · Patent FR-1902-317598 (2) · Patent GB-1913-4191 (2) · Patent IT-1913- (2) · Patent GB-1913-11207 (2) · Patent BE-1912-07-11 Maiche et Legras (2) · Patent US-1913-1087946 (2)
Related to aircraft:
Patent agent:
None (219) · None (22) · Armengaud jeune (17) · Munn & Co. (12) · Boramé et Julien (10) · Chassevent (9) · Haseltine, Lake & Co. (9) · Brandon frères (9) · E. Blétry (8) · Hippolyte Josse (8) · Lavoix et Mosès (7) · Weismann et Marx (6) · C. Blétry (6) · de Bongé (5) · J. Bonnet-Thirion (5) · Boult, Wade & Tennant (5) · G. Petiau (5)
National tech categories:
FR 6.4 (224) · None (78) · FR 6.3 (58) · USPC 244/30 (37) · USPC 244/26 (17) · USPC 244/25 (15) · USPC 244/22 (13) · DE 77h.2 (11) · USPC 244/127 (8) · USPC 244/32 (8) · USPC 244/96 (8) · DE 77 (7) · USPC 244/97 (7) · USPC 244/11 (7) · USPC 244/29 (7) · USPC 244/125 (7) · USPC 244/67 (7) · DE 77h (5) · USPC 24/713.8 (5) · USPC 244/99 (5)
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