Patent FR-1914-426626.18838

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This is an addition to Patent FR-1911-426626, which brevet was filed 1911-02-27.

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Patent family descending from Patent FR-1914-426626.18838


Year filed 1914
Year granted 1914
Office FR
Patent number 18838
Inventors Charles Espinosa, Louis Vinay
Inventor country FR
Applicant person Charles Espinosa, Louis Vinay
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Propulseur à attaque semi-orthogonale
English title Propeller of eight blades, each rotating, giving semi-orthogonal angles of attack
Tech fields propulsion, propellers
Filing date 1914/01/28
Full specification filed date
Application number 18838D
Grant date 1914/04/28
Granted? Yes
Publication date 1914/07/11
Supplementary to patent Patent FR-1911-426626
Related to aircraft? Yes
Serial number
Patent agent Rigot et Prévost
Assigned to
National tech categories FR 6.4
IPCs IPC B64C11/00
CPCs CPC B64C11/006
Family year 1911
First filing? No
Cites these patents
Citations from after 1930
Application ID 18729945
INPADOC family ID 5201619
Number of text pages 2
Number of diagram pages 2
Number of figures 10
Number of claims 3