Patent GB-1911-14926

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Year filed 1911
Year granted 1912
Office GB
Patent number 14926
Inventors Édouard-Jean Bigourdan
Inventor country FR
Applicant person Édouard-Jean Bigourdan
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Improvements relating to Helicopter Flying-machines
English title Improvements relating to Helicopter Flying-machines
Tech fields helicopter
Filing date 1911/06/26
Full specification filed date
Application number 191114926D
Grant date 1912/01/18
Granted? Yes
Publication date
Supplementary to patent Patent FR-1910-417989
Related to aircraft? Yes
Serial number
Patent agent Mathys & Co.
Assigned to
National tech categories
IPCs IPC B64C11/00
CPCs CPC B64C11/007, CPC B64C11/005
Family year 1911
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 23618547
INPADOC family ID 11108916
Number of text pages 2
Number of diagram pages 1
Number of figures 5
Number of claims 3