Drilldown: Patents

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Patents > Filing date: 1909 & Supplementary to patent: None & Family year: 1900 - 1999

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Year filed:
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Applicant firm:
None (985) · Établissements de Dion-Bouton (6) · Motorluftschiff Studiengesellschaft m.b.H (3) · A Sociedade Estella Cessionaria de João Gouveia (2)
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Related to aircraft:
Patent agent:
None (503) · None (38) · Armengaud jeune (34) · Marks & Clerk (18) · Weismann et Marx (14) · J. Bonnet-Thirion (13) · Munn & Co. (12) · E. Blétry (11) · Charles Dony (8) · Lavoix et Mosès (8) · G. F. Redfern & Co. (7) · L. Chassevent (6) · Schwab (6) · Boramé et Julien (6)
National tech categories:
None (429) · FR 6.4 (255) · HU V/h (27) · AT 77d (11) · USPC 244/22 (10) · USPC 244/45R (9) · USPC 244/66 (8) · USPC 244/13 (7) · USPC 244/93 (7) · USPC 244/48 (7) · USPC 244/65 (7) · USPC 244/72 (6) · USPC 244/20 (6) · FR 6.2 (6) · FR 5.3 (6) · DE 77h.5 (6) · USPC 244/51 (6) · USPC 244/80 (6) · BE K (6)
IPCs:
None (510) · IPC B64C39/00 (64) · IPC B64C17/00 (48) · IPC B64B1/00 (42) · IPC B64C1/00 (38) · IPC B64C3/38 (32) · IPC B64B1/58 (26) · IPC B64C23/00 (20) · IPC B64C13/00 (18) · IPC B64C11/00 (17) · IPC B64C33/00 (16) · IPC B64C3/00 (14) · IPC B64C33/02 (13) · IPC B64C25/00 (12) · IPC B64B1/40 (10) · IPC B64C3/54 (9) · IPC B64C3/52 (8) · IPC B64C27/04 (7) · IPC B64C35/00 (7) · IPC B64B1/62 (6)
First filing:
Cites these patents:
None (1011)
Citations from after 1930:

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