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Patents > IPCs : IPC B64B1/00 or IPC F02B37/16

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Tech fields:
LTA (335) · balloon (77) · navigation (76) · propulsion (72) · frame (72) · None (63) · dirigible (57) · airship (44) · stability (33) · hybrid (33) · construction (31) · car (30) · propeller (27) · safety (25) · design (25) · airplane (24) · balloons (24) · rigid (21) · ballonet (18)
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Supplementary to patent:
None (360) · Patent FR-1913-472867 (4) · Patent FR-1913-467415 (3) · Patent ES-1906-38692 (3) · Patent GB-1913-11207 (2) · Patent FR-1902-317598 (2) · Patent FR-1914-472867.19895 (2) · Patent CH-1909-48028 (2) · Patent FR-1907-382794 (2) · Patent IT-1913- (2) · Patent US-1913-1087946 (2) · Patent BE-1912-07-11 Maiche et Legras (2)
Related to aircraft:
Patent agent:
None (187) · None (18) · Armengaud jeune (14) · Boramé et Julien (10) · Munn & Co. (10) · Haseltine, Lake & Co. (9) · Chassevent (8) · Brandon frères (8) · Hippolyte Josse (7) · Lavoix et Mosès (6) · G. Petiau (5) · E. Blétry (5) · de Bongé (5) · C. Blétry (5) · Boult, Wade & Tennant (5)
National tech categories:
FR 6.4 (192) · None (61) · FR 6.3 (56) · USPC 244/30 (36) · USPC 244/26 (17) · USPC 244/25 (12) · DE 77h.2 (11) · DE 77 (9) · USPC 244/96 (8) · USPC 244/32 (7) · USPC 244/67 (7) · USPC 244/125 (7) · USPC 244/97 (7) · USPC 244/127 (7) · USPC 244/29 (6) · USPC 24/713.8 (5) · DE 77h (5)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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