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Patents > Tech fields: LTA & IPCs : IPC B64B1/00 or IPC B64C25/00 or IPC B64C39/00

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None (294) · Patent FR-1913-472867 (4) · Patent FR-1913-467415 (3) · Patent ES-1906-38692 (3) · Patent FR-1912-441089 (2) · Patent BE-1912-07-11 Maiche et Legras (2) · Patent US-1913-1087946 (2) · Patent NO-1891-2589 (2) · Patent IT-1913- (2) · Patent FR-1907-382794 (2) · Patent FR-1914-472867.19895 (2)
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None (155) · None (14) · Armengaud jeune (12) · Boramé et Julien (10) · Chassevent (9) · Munn & Co. (9) · Haseltine, Lake & Co. (8) · Lavoix et Mosès (6) · Hippolyte Josse (6) · Brandon frères (6) · de Bongé (5) · G. Petiau (5) · Ed. Wolf (4) · Boult, Wade & Tennant (4) · Marks & Clerk (4)
National tech categories:
FR 6.4 (170) · None (43) · FR 6.3 (43) · USPC 244/30 (37) · USPC 244/26 (15) · USPC 244/25 (13) · DE 77h.2 (8) · USPC 244/127 (7) · USPC 244/96 (7) · USPC 244/97 (6) · USPC 244/29 (6) · USPC 244/67 (5) · USPC 244/32 (5) · DE 77 (5) · USPC 244/27 (5) · USPC 244/125 (4) · USPC 244/99 (4) · DE 77h (4) · USPC 244/128 (4)
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