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Patents > Office: Other & National tech categories: FR 6.4 & IPCs: IPC B64C39/00

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None (162) · Patent FR-1912-441089 (2) · Patent FR-1909-403418 (2) · Patent FR-1913-461629 (2) · Patent FR-1908-394418 (2) · Patent FR-1908-396470 (2) · Patent FR-1910-414004 (2)
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None (33) · None (27) · Armengaud jeune (19) · J. Bonnet-Thirion (12) · J. Germain (10) · E. Blétry (9) · Boramé et Julien (8) · Y. Rabilloud et fils (8) · Brandon frères (7) · L. Chassevent (6) · Dupont et Elluin (6) · Lavoix et Mosès (5) · Weismann et Marx (5) · Ch. Mardelet (5) · Charles Assi (5) · Charles Dony (5)
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