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Patents > Office : US or Other & IPCs: IPC B64C39/00

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None (452) · Paris (5) · Seine (5) · London (3) · Eure (3) · Nord (2) · Seine-et-Oise (2)
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Supplementary to patent:
None (321) · Patent FR-1916-502839 (3) · Patent US-1910-996592 (3)
Related to aircraft:
Patent agent:
None (95) · None (36) · Armengaud jeune (20) · Marks & Clerk (13) · J. Bonnet-Thirion (13) · J. Germain (10) · E. Blétry (10) · Boult, Wade & Tennant (9) · Y. Rabilloud et fils (8) · Brandon frères (8) · Boramé et Julien (8) · Weismann et Marx (7) · Dupont et Elluin (7) · Charles Assi (6) · L. Chassevent (6)
National tech categories:
FR 6.4 (269) · None (135) · FR 6.3 (11) · USPC 244/45R (10) · USPC 244/13 (10) · DE 77h.5 (9) · USPC 244/70 (5) · DE 77h.11 (5) · FR 6.2 (4) · USPC 244/27 (4) · USPC 244/9 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (293) · CPC B64C2700/6295 (242) · CPC B64C39/005 (59) · CPC B64C39/08 (43) · CPC B64C39/008 (25) · CPC B64C39/003 (19) · CPC B64C39/006 (13) · CPC B64C39/062 (4) · CPC B64C3/42 (4) · CPC B64C39/06 (3) · CPC B64C39/068 (3) · None (3)
First filing:
Citations from after 1930:
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