Patent FR-1911-421906

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Sources

(Reference is made in the above to an Austrian filing of 11 September 1909.)

  • Inventor location: Austria (See Ignaz Etrich for more.)
  • Inventor location: Airplane manufacturer and designer (See Ignaz Etrich for more.)


Year filed 1910
Year granted 1911
Office FR
Patent number 421906
Inventors Ignaz Etrich
Inventor country AT
Applicant person Ignaz Etrich
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Surface de sustentation pour aéroplanes
English title Improvements in monoplane construction and design specifications, all in the furtherance of aerodynamics
Tech fields airplane, aerodynamics, construction, navigation, monoplane, design, lift, sustentation
Filing date September 10, 1910
Full specification filed date
Application number 421906D
Grant date January 5, 1911
Granted? Yes
Publication date March 8, 1911
Supplementary to patent Patent AT-1909-IE
Related to aircraft? Yes
Serial number
Patent agent E. Blétry
Assigned to
National tech categories FR 6.4
IPCs IPC B64C3/52
CPCs CPC B64C2700/6245, CPC B64C3/52
Family year 1910
First filing? No
Cites these patents
Citations from after 1930
Application ID 19240765
INPADOC family ID 5314119
Number of text pages 3
Number of diagram pages 1
Number of figures 5
Number of claims 2