Drilldown: Patents

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Patents > Inventor country: FR & Applicant firm: None & Tech fields : Airplane or propeller

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Patent agent:
None (274) · Armengaud jeune (157) · None (54) · J. Bonnet-Thirion (33) · Weismann et Marx (33) · Charles Dony (29) · Hippolyte Josse (26) · G. de Mestral et F. Harlé (21) · J. Germain (19) · L. Chassevent (17) · E. Blétry (14) · Haseltine, Lake & Co. (14) · Boult, Wade & Tennant (14) · Émile Bert (12) · Abel & Imray (12) · Dupont et Elluin (12) · Y. Rabilloud et fils (11) · Marks & Clerk (11)
National tech categories:
FR 6.4 (756) · None (163) · BE K (54) · FR 6.3 (35) · DE 77h.5 (16) · HU V/h (16) · AT 77d (12) · FR 5.8 (10) · FR 6.2 (10) · IT 8 (6) · RU Group V (5) · CH 129b (5) · FR 6.8 (4) · DE 77h.6 (4)
IPCs:
None (232) · IPC B64C17/00 (155) · IPC B64C1/00 (143) · IPC B64C39/00 (106) · IPC B64C3/00 (48) · IPC B64C3/38 (47) · IPC B64C25/00 (36) · IPC B64C13/00 (34) · IPC B64C23/00 (33) · IPC B64C35/00 (22) · IPC B64C17/06 (21) · IPC B64C3/52 (20) · IPC B64C3/54 (20) · IPC B64C11/00 (19) · IPC B64C3/56 (15) · IPC B64C33/02 (15) · IPC B64D35/04 (12) · IPC B64B1/00 (12) · IPC B64C27/04 (12) · IPC B64C11/04 (12)
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