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Patents > Assigned to : Joseph P. Karch or None & IPCs: IPC B64B1/00

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Tech fields:
LTA (364) · balloon (84) · frame (83) · propulsion (76) · navigation (76) · dirigible (57) · airship (49) · stability (39) · design (39) · Construction (37) · hybrid (37) · car (32) · dirigibles (31) · safety (31) · propeller (28) · balloons (27) · airplane (27) · rigid (26) · compartments (22) · rudder (20)
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Supplementary to patent:
None (347) · Patent FR-1913-472867 (4) · Patent FR-1913-467415 (3) · Patent ES-1906-38692‎ (3) · Patent FR-1914-472867.19895 (2) · Patent FR-1902-317598 (2) · Patent BE-1912-07-11 Maiche et Legras (2) · Patent US-1913-1087946 (2) · Patent CH-1909-48028 (2) · Patent IT-1913- (2) · Patent FR-1907-382794 (2) · Patent GB-1913-11207 (2)
Related to aircraft:
Patent agent:
None (178) · None (18) · Armengaud jeune (14) · Boramé et Julien (10) · Haseltine, Lake & Co. (9) · Munn & Co. (9) · Brandon frères (8) · Chassevent (8) · Hippolyte Josse (7) · Lavoix et Mosès (6) · C. Blétry (5) · de Bongé (5) · Boult, Wade & Tennant (5) · E. Blétry (5) · G. Petiau (5) · Dupont et Elluin (4) · G. de Mestral et F. Harlé (4) · Marks & Clerk (4) · Ed. Wolf (4) · J. Bonnet-Thirion (4)
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National tech categories:
FR 6.4 (188) · None (58) · FR 6.3 (56) · USPC 244/30 (35) · USPC 244/26 (16) · USPC 244/25 (13) · DE 77h.2 (11) · USPC 244/127 (8) · USPC 244/96 (8) · USPC 244/29 (7) · DE 77 (7) · USPC 244/32 (7) · USPC 244/125 (7) · USPC 244/67 (7) · USPC 244/99 (5) · DE 77h (5) · USPC 244/97 (5) · FR 6.2 (4) · USPC 244/128 (4)
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