Patent FR-1913-451669

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Symmetrical airplane propeller placement intended to be less hazardous in case one propeller breaks.

Inventor location: Seine

Sources


Year filed 1912
Year granted 1913
Office FR
Patent number 451669
Inventors Alessandro Anzani
Inventor country FR
Applicant person Alessandro Anzani
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Système de propulsion pour aéroplanes
English title Propulsion system for airplanes
Tech fields airplane, propulsion, safety, navigation
Filing date 1912-12-10
Full specification filed date
Application number 451669D
Grant date 1913-02-17
Granted? 1
Publication date 1913-04-24
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent G. de Mestral et F. Harlé
Assigned to
National tech categories FR 6.4
IPCs IPC B64C11/00
CPCs CPC B64D2700/62692, CPC B64C11/00
Family year 1912
First filing? 1
Cites these patents
Citations from after 1930
Application ID 19269896
INPADOC family ID 5338990
Number of text pages 2
Number of diagram pages 1
Number of figures 6
Number of claims 1