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Patents > Filing date: 1909 & Supplementary to patent : Patent GB-1909-8531 or None

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Applicant firm:
None (1075) · Motorluftschiff Studiengesellschaft m.b.H (7) · Établissements de Dion-Bouton (6) · A Sociedade Estella Cessionaria de João Gouveia (2)
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Related to aircraft:
National tech categories:
None (454) · FR 6.4 (259) · HU V/h (27) · AT 77d (19) · USPC 244/45R (10) · USPC 244/22 (10) · DE 77h.5 (8) · USPC 244/66 (8) · IT 8 (8) · USPC 244/93 (7) · FR 6.2 (7) · DE 77h.4 (7) · USPC 244/13 (7) · USPC 244/65 (7) · USPC 244/48 (7)
IPCs:
None (576) · IPC B64C39/00 (66) · IPC B64C17/00 (50) · IPC B64B1/00 (44) · IPC B64C1/00 (41) · IPC B64C3/38 (32) · IPC B64B1/58 (28) · IPC B64C23/00 (20) · IPC B64C13/00 (18) · IPC B64C11/00 (17) · IPC B64C33/00 (17) · IPC B64C33/02 (14) · IPC B64C3/00 (14) · IPC B64C25/00 (12) · IPC B64B1/40 (10) · IPC B64C3/54 (9) · IPC B64C3/52 (9) · IPC B64B1/62 (8) · IPC B64C27/04 (7) · IPC B64C35/00 (7)
First filing:
Cites these patents:
None (1105)
Citations from after 1930:
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