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Patents > National tech categories: FR 6.4 & IPCs : IPC B64C1/00 or IPC B64C23/00

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None (254) · Patent FR-1909-410140 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent IT-1913-03-20 Vigilio Baldo (2) · Patent FR-1910-430552 (2) · Patent FR-1915-525800 (2) · Patent DE-1910-04-04 August Wendtland (2) · Patent FR-1905-361723 (2) · Patent FR-1912-450608 (2) · Patent FR-1908-394254‎ (2) · Patent FR-1909-408872 (2) · Patent IT-1911-06-13 Guido Castagneris (2) · Patent FR-1910-423998 (2)
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None (52) · None (47) · Armengaud jeune (24) · J. Bonnet-Thirion (14) · Schwab (11) · E. Blétry (10) · J. Germain (10) · Charles Dony (9) · Hippolyte Josse (8) · Dupont et Elluin (8) · Lavoix et Mosès (7) · P. Follin (7) · de Bongé (7) · J. Fayollet (6) · Paul Coulomb (6) · Dom. Casalonga (6) · G. de Mestral et F. Harlé (6) · Chassevent (6) · L. Chassevent (6)
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