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Patents > Filing date: 1912 & National tech categories : FR 6.4 or None

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Supplementary to patent:
None (580) · Patent AU-1911-510 (4) · Patent GB-1911-29012 (4) · Patent GB-1911-12188 (4) · Patent FR-1911-443878 (3) · Patent FR-1911-446282 (3) · Patent US-1911-1032812 (3) · Patent BE-1911-05-15 Georges de Bothezat (3) · Patent FR-1912-446040 (3)
Related to aircraft:
Patent agent:
None (346) · Armengaud jeune (38) · None (27) · Marks & Clerk (20) · Dupont et Elluin (16) · Charles Dony (14) · Hippolyte Josse (13) · J. Bonnet-Thirion (11) · Haseltine, Lake & Co. (10) · E. Blétry (9) · H. Bœttcher fils (9) · Brandon frères (8) · L. Chassevent (8) · Boult, Wade & Tennant (8) · Societe A. Frey et de Carsalade (7)
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IPCs:
None (302) · IPC B64C17/00 (82) · IPC B64C1/00 (62) · IPC B64C39/00 (53) · IPC B64C35/00 (26) · IPC B64B1/00 (25) · IPC B64C11/00 (22) · IPC B64C3/38 (20) · IPC B64C25/00 (18) · IPC B64C3/00 (16) · IPC B64D17/00 (13) · IPC B64B1/58 (12) · IPC B64C3/56 (12) · IPC B64C23/00 (10) · IPC B64C13/00 (9) · IPC B64C27/04 (8) · IPC B64C3/54 (7) · IPC B64C11/16 (6) · IPC B64D17/54 (6) · IPC B64D1/04 (6)
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