Patent FR-1911-423477

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Year filed 1910
Year granted 1911
Office FR
Patent number 423477
Inventors Elmer-Francis Cassel
Inventor country FR
Applicant person Elmer-Francis Cassel
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Perfectionnements apportés aux aéroplanes
English title Improvements to airplanes
Tech fields airplane, wing, airfoil, sustentation
Filing date 1910-12-08
Full specification filed date
Application number 423477D
Grant date 1911-02-16
Granted? 1
Publication date 1911-04-19
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent Charles Assi
Assigned to
National tech categories FR 6.4
IPCs IPC B64C1/00, IPC B64C17/00
CPCs CPC B64C2700/6218, CPC B64C17/00
Family year 1910
First filing? 1
Number of citations
Cited by
Application ID 19242300
INPADOC family ID 5315430
Number of text pages 3
Number of diagram pages 1
Number of figures 8
Number of claims 5