Drilldown: Patents

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Patents > Office : DE or FR or LU & Tech fields : Propellers or navigation or propulsion or stability & Related to aircraft : 1909-11-30 or Yes

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Patent agent:
None (456) · Armengaud jeune (98) · E. Blétry (21) · J. Bonnet-Thirion (19) · Charles Dony (17) · Chassevent (16) · J. Germain (16) · L. Chassevent (16) · None (16) · Lavoix et Mosès (15) · Schwab (15) · Hippolyte Josse (14) · G. de Mestral et F. Harlé (13) · Weismann et Marx (13) · Dom. Casalonga (13) · Brandon frères (12) · de Bongé (9) · Boramé et Julien (9) · H. Bœttcher fils (9)
IPCs:
None (391) · IPC B64C17/00 (156) · IPC B64C1/00 (129) · IPC B64B1/00 (72) · IPC B64C39/00 (57) · IPC B64C11/00 (53) · IPC B64C33/02 (27) · IPC B64C23/00 (25) · IPC B64C17/06 (21) · IPC B64B1/58 (19) · IPC B64C11/04 (16) · IPC B64C3/38 (15) · IPC B64C27/04 (14) · IPC B64C11/16 (12) · IPC B64C11/20 (11) · IPC B63H1/12 (11) · IPC B64C13/00 (10)
CPCs:
None (348) · CPC B64C17/00 (165) · CPC B64C2700/6218 (74) · CPC B64B1/00 (73) · CPC B64C39/00 (42) · CPC B64C11/006 (40) · CPC B64C2700/6212 (32) · CPC B64C2700/6295 (28) · CPC B64C23/005 (27) · CPC B64C33/02 (27) · CPC B64C2700/6214 (27) · CPC B64C17/06 (25) · CPC B64C2700/6274 (23) · CPC B64B1/58 (20) · CPC B64C2700/6216 (20) · CPC B64C13/00 (19) · CPC B64C11/04 (16) · CPC B64C11/16 (13) · CPC B64C2700/6219 (13) · CPC B64C11/00 (13)
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Citations from after 1930:
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