Patent FR-1909-397651

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Two propulsion groups, one with a large propeller, the other with a set of smaller ones.

Patents which are supplementary to this one

In the Canadian filing of this invention, the inventor is given as Édouard Surcouf, "Manager of 121–123, Rue de Bellevue, Billancourt (Seine), France".

Sources


Year filed 1908
Year granted 1909
Office FR
Patent number 397651
Inventors
Inventor country FR
Applicant person
Applicant firm Société anonyme Astra
Applicant type COMPANY
Applicant is inventor? 0
Original title Dispositif propulseur perfectionné pour appareils aéronautiques
English title Propelling device perfected for aeronautical apparatus
Tech fields propulsion, motor, LTA, dirigible, propeller, design
Filing date 1908-12-19
Full specification filed date
Application number 397651D
Grant date 1909-03-03
Granted? 1
Publication date 1909-05-14
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent H. Elluin
Assigned to
National tech categories FR 6.4
IPCs IPC B64B1/00
CPCs CPC B64B1/00
Family year 1908
First filing? 1
Cites these patents
Citations from after 1930
Application ID 19217038
INPADOC family ID 5295626
Number of text pages 3
Number of diagram pages 2
Number of figures 4
Number of claims 2