Patent FR-1908-396821

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This lift surfaces of this airplane can oscillate, and move otherwise, having effects on angle of incidence, among other things.


Patent family descending from Patent FR-1908-396821

Year filed 1908
Year granted 1909
Office FR
Patent number 396821
Inventors Léon Dufour
Inventor country CH
Applicant person Léon Dufour
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Aéroplane
English title Airplane
Tech fields airplane, design, propellers, propulsion, ascension, wings, lift, sustentation, rudder, incidence, frame
Filing date 1908/11/16
Full specification filed date
Application number 396821D
Grant date 1909/02/16
Granted? Yes
Publication date 1909/04/21
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent G. de Mestral et F. Harlé
Assigned to
National tech categories FR 6.4
IPCs IPC B64C3/56, IPC B64C31/028
CPCs CPC B64C31/028, CPC B64C3/56
Family year 1908
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19216223
INPADOC family ID 5195094
Number of text pages 4
Number of diagram pages 1
Number of figures 6
Number of claims 1