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Patents > Tech fields : Airplane or propeller & IPCs : IPC B64C13/00 or IPC B64C17/00

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None (191) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent FR-1912-442419 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent GB-1909-8531 (3)
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None (70) · Armengaud jeune (28) · None (13) · Marks & Clerk (11) · E. Blétry (10) · Abel & Imray (8) · Weismann et Marx (7) · Charles Dony (6) · J. Bonnet-Thirion (6) · J. Germain (6) · Schwab (5) · P. Follin (5) · J. Fayollet (5) · Lavoix et Mosès (4) · L. Chassevent (4) · C. Baumann (4) · Louis Tailfer (4)
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