Drilldown: Patents

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Patents > Year granted: 1900 - 1999 & Tech fields : propellers or propulsion or subsystem & Granted: Yes & National tech categories: FR 6.4 & Cites these patents : Patent FR-1911-438363 or None

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None (85) · Armengaud jeune (56) · None (26) · J. Bonnet-Thirion (24) · E. Blétry (24) · Weismann et Marx (21) · J. Germain (16) · L. Chassevent (16) · Charles Dony (15) · G. de Mestral et F. Harlé (15) · Schwab (15) · Lavoix et Mosès‎ (13) · Brandon frères (12) · Dupont et Elluin (10) · Matray frères et Cie (9) · Boramé et Julien (9) · de Bongé (8)
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IPCs:
IPC B64C39/00 (71) · IPC B64C11/00 (60) · IPC B64C17/00 (43) · IPC B64C1/00 (33) · IPC B64C23/00 (32) · IPC B64B1/00 (30) · IPC B64C27/04 (20) · None (19) · IPC B64C11/04 (16) · IPC B64C33/02 (16) · IPC B64D27/00 (14) · IPC B64C11/20 (13) · IPC B64B1/58 (12) · IPC B64D35/04 (11) · IPC B64C35/00 (10) · IPC B64C3/00 (10) · IPC B64C3/38 (8) · IPC B64B1/62 (8) · IPC B64C13/00 (8)
CPCs:
CPC B64C39/00 (50) · CPC B64C17/00 (47) · CPC B64C11/006 (43) · CPC B64C23/005 (33) · CPC B64B1/00 (30) · CPC B64C2700/6295 (28) · CPC B64C2700/6274 (27) · CPC B64C2700/6218 (20) · CPC B64C33/02 (17) · CPC B64C11/04 (16) · CPC B64C11/00 (13) · CPC B64C2700/6212 (13) · CPC B64C2700/6281 (13) · CPC B64C27/04 (13) · CPC B64B1/58 (12) · CPC B64D27/00 (12) · CPC B64D35/04 (11) · CPC B64C3/00 (10) · CPC B64C13/00 (9) · CPC B64B1/62 (8)
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