Drilldown: Patents

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Patents > IPCs: IPC B64C39/00 & Cites these patents: None

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None (446) · Paris (5) · Seine (5) · Eure (3) · London (2) · Nord (2) · Seine-et-Oise (2)
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None (313) · Patent FR-1916-502839 (3) · Patent US-1910-996592 (3)
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None (95) · None (36) · Armengaud jeune (20) · J. Bonnet-Thirion (12) · Marks & Clerk (12) · E. Blétry (10) · J. Germain (10) · Boult, Wade & Tennant (9) · Y. Rabilloud et fils (8) · Boramé et Julien (8) · Dupont et Elluin (7) · Brandon frères (7) · Weismann et Marx (7) · Charles Assi (6) · L. Chassevent (6)
National tech categories:
FR 6.4 (268) · None (130) · FR 6.3 (11) · USPC 244/45R (10) · DE 77h.5 (9) · USPC 244/13 (9) · USPC 244/70 (5) · DE 77h.11 (5) · FR 6.2 (4) · USPC 244/27 (4) · USPC 244/9 (3) · USPC 244/87 (2) · USPC 244/20 (2) · USPC 244/47 (2) · USPC 244/19 (2) · FR 6.1 (2) · DE 77h.8 (2) · USPC 244/234 (2) · DE 77h.10 (2) · DE 77 (2)
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CPCs:
CPC B64C39/00 (291) · CPC B64C2700/6295 (237) · CPC B64C39/005 (58) · CPC B64C39/08 (40) · CPC B64C39/008 (25) · CPC B64C39/003 (18) · CPC B64C39/006 (13) · CPC B64C39/062 (4) · CPC B64C3/42 (4) · CPC B64C39/06 (3) · CPC B64C39/068 (3) · None (3)
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