Patent FR-1912-444900

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  • Formula R=KSV^2(sin a) appears on page 2 of the patent specification
  • Inventor location: boulevard Dong-Kanh, 32, Hanoï, Tonkin

Sources


Year filed 1912
Year granted 1912
Office FR
Patent number 444900
Inventors Casimir-Louis Achard
Inventor country VN
Inventor location
Applicant person Casimir-Louis Achard
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Stabilisateur équilibreur automatique pour aéroplanes
English title Automatic stabilizer for aeroplanes
Tech fields stability, airplane, automatic stability
Filing date 1912/04/22
Full specification filed date
Application number 444900D
Grant date 1912/08/20
Granted? Yes
Publication date 1912/10/28
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories FR 6.4
IPCs IPC B64C17/00
CPCs CPC B64C17/00, CPC B64C2700/6214
Family year 1912
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19263277
INPADOC family ID 5333294
Number of text pages 3
Number of diagram pages 4
Number of figures 4
Number of claims 1