Patent FR-1913-457651

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(This patent has a certificate of addition in which reference is made to a Belgian patent "taken" 8 May 1913, and "deposited" (etc.) on 31 December 1913. This is of some linguistic intrigue in that the date of "Demande de brevet déposée" seemingly follows after the other date. Therefore French and Belgian filings seemingly took place on the same day.)

(Of some note here is Belgian use of "hélice" (blade) whereas francophone usage more generally would have "propulseur".)

  • Inventor location: Belgium

Patent family descending from Patent FR-1913-457651


Year filed 1913
Year granted 1913
Office FR
Patent number 457651
Inventors Auguste Ransy-Putzeys
Inventor country BE
Applicant person Auguste Ransy-Putzeys
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Système de commande de l'hélice des véhicules propulsés par hélice aérienne
English title Propeller control system for propeller-driven vehicles (airplanes)
Tech fields propulsion, navigation, instrument, propellers, control, airplane
Filing date May 8, 1913
Full specification filed date
Application number FRD457651
Grant date July 18, 1913
Granted? Yes
Publication date December 23, 1913
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent Charles Dony
Assigned to
National tech categories FR 6.4
IPCs IPC B64D35/08
CPCs CPC B64D35/08
Family year
First filing? No
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 3
Number of diagram pages 1
Number of figures 8
Number of claims