Drilldown: Patents

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Patents > Assigned to: None & Family year: 1900 - 1909 & Number of figures: 4-6

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None (562) · Patent FR-1907-373818 (7) · Patent SE-1906-23283 (6) · Patent FR-1904-342610 (4) · Patent DE-1907-215602 (4) · Patent DE-1907-214228 (4) · Patent FR-1909-399456 (4) · Patent FR-1909-420322 (4)
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National tech categories:
FR 6.4 (256) · None (219) · HU V/h (47) · FR 6.3 (27) · AT 77d (19) · DE 77h.5 (14) · RU Group V (10) · FR 6.2 (8) · USPC 244/22 (8) · USPC 244/64 (7) · DE 77h.10 (7) · DE 77h (6) · USPC 244/63 (6)
IPCs:
None (368) · IPC B64C39/00 (62) · IPC B64B1/00 (54) · IPC B64C17/00 (36) · IPC B64C1/00 (34) · IPC B64C33/02 (26) · IPC B64C23/00 (21) · IPC B64C3/38 (20) · IPC B64C11/00 (19) · IPC B64C27/04 (19) · IPC B64B1/58 (16) · IPC B64C13/00 (15) · IPC B64C33/00 (15) · IPC B64C25/00 (9) · IPC B64C35/00 (8) · IPC B64C5/04 (8) · IPC B64C31/06 (8) · IPC B64C3/52 (7)
First filing:
Cites these patents:
None (850)
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