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Patents > Year filed: 1909 & Supplementary to patent : Patent GB-1909-12556 or Patent NO-1915-12-15 Carl Alfred Johansson or None

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None (1094) · Motorluftschiff Studiengesellschaft m.b.H (7) · Établissements de Dion-Bouton (6) · Société Antoinette (2) · A Sociedade Estella Cessionaria de João Gouveia (2)
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None (487) · FR 6.4 (246) · HU V/h (28) · AT 77d (18) · MX F. III (11) · IT 8 (9) · USPC 244/45R (9) · USPC 244/22 (8) · USPC 244/66 (8) · FR 6.2 (7) · USPC 244/80 (7) · BE K (7) · USPC 244/65 (7) · USPC 244/13 (7) · USPC 244/48 (7) · USPC 244/20 (6) · USPC 244/51 (6) · USPC 244/93 (6) · AU 90.3 (6) · DE 77h.4 (6)
IPCs:
None (620) · IPC B64C39/00 (64) · IPC B64C17/00 (47) · IPC B64B1/00 (44) · IPC B64C1/00 (39) · IPC B64B1/58 (27) · IPC B64C3/38 (27) · IPC B64C23/00 (21) · IPC B64C13/00 (18) · IPC B64C11/00 (17) · IPC B64C33/00 (16) · IPC B64C3/00 (14) · IPC B64C33/02 (14) · IPC B64C25/00 (11) · IPC B64B1/40 (10) · IPC B64C3/54 (9) · IPC B64C3/52 (8) · IPC B64B1/62 (8) · IPC B64C27/04 (7)
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None (1120) · 1 (4) · 0 (2)
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