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Patents > IPCs : IPC B64B1/00 or IPC B64B1/58 & First filing: Yes

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None (323) · Seine (5) · California (3) · Hérault (2) · Westminster (2) · London (2) · Allegheny county, Pennsylvania (2) · Berlin (2) · Vaucluse (2) · Bouches-du-Rhône (2) · Pittsburgh (2) · PA (2) · Los Angeles (2) · Missouri (2) · Nord (2)
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Tech fields:
LTA (283) · frame (61) · balloon (60) · navigation (55) · propulsion (49) · airship (44) · dirigible (37) · hybrid (27) · car (26) · design (25) · construction (24) · safety (20) · stability (19) · compartments (19) · airplane (19) · Balloons (18) · propeller (18) · None (17) · ballonet (17) · dirigibles (17)
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Supplementary to patent:
None (313) · Patent FR-1913-472867 (3) · Patent DE-1909-227246 (2) · Patent US-1913-1087946 (2) · Patent BE-1912-07-11 Maiche et Legras (2) · Patent FR-1914-472867.19895 (2) · Patent DE-1911-258741 (2) · Patent DE-1910-234453 (2)
Related to aircraft:
Patent agent:
None (123) · None (22) · Borame et Julien (12) · Marks & Clerk (11) · Munn & Co. (10) · Armengaud jeune (9) · Haseltine, Lake & Co. (8) · Boult, Wade & Tennant (5) · Lavoix et Mosès (4) · E. Blétry (4) · Brewer & Son (4) · Hippolyte Josse (4) · Wheatley & Mackenzie (4)
National tech categories:
FR 6.4 (120) · None (71) · USPC 244/30 (28) · FR 6.3 (22) · USPC 244/26 (16) · DE 77 (11) · DE 77h.2 (8) · USPC 244/25 (8) · USPC 244/97 (7) · USPC 244/67 (7) · USPC 244/125 (7) · DE 77h (6) · USPC 244/29 (6) · USPC 244/32 (5) · USPC 24/713.8 (5) · USPC 244/127 (5) · DE 77h.4 (5) · DE 77h.15 (4) · USPC 244/96 (4) · USPC 244/99 (4)
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