Patent FR-1909-380581.10732

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Year filed 1909
Year granted 1909
Office FR
Patent number 10732
Inventors Émile Dupont
Inventor country BE
Inventor location
Applicant person Émile Dupont
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title 1er cert. d'add, au brevet pris, le 6 aout 1907, pour hélicoptère ou aéroplanes à deux hélices
English title Supplement to patent of Aug 6, 1907 for airplanes or helicopters with two propellers
Tech fields Airplane, Helicopter, Propellers, Propulsion, Ascension
Filing date 1909/03/25
Full specification filed date
Application number 10732D
Grant date 1909/07/29
Granted? Yes
Publication date 1909/09/10
Supplementary to patent Patent FR-1907-380581
Related to aircraft? Yes
Serial number
Patent agent Schwab
Assigned to
National tech categories FR 6.4
IPCs IPC B64C3/52, IPC B64C27/04
CPCs CPC B64C2700/6245, CPC B64C11/48, CPC B64C27/10, CPC B64C3/52
Family year 1907
First filing? No
Cites these patents
Citations from after 1930
Application ID 18703089
INPADOC family ID 5195594
Number of text pages 2
Number of diagram pages 1
Number of figures 16
Number of claims 2