Patent DE-1908-232250

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  • Inventor location: Charlottenburg; Zwickau I Sa.

Patents which are supplementary to this one

  • Patent GB-1910-13298 (English title: Improvements in aeroplanes, Filing date: 1910-06-01)
  • Patent FR-1910-416676 (English title: Kite with support surfaces oscillating around the transverse axes of the chassis, Filing date: 1910-06-02)
  • Patent US-1910-985126 (English title: Aeroplane, Filing date: 1910-06-25)
  • Patent AT-1910-58962 (English title: Airplane with aerodynamic surfaces mounted on the frame around the transverse axis, Filing date: 1910-05-30)


Year filed 1908
Year granted 1911
Office DE
Patent number 232250
Inventors Alexander Baumann, Ernst Emil Freytag
Inventor country DE
Applicant person DE
Applicant firm
Applicant type
Applicant is inventor? Yes
Original title Drachenflieger mit Querachsen des Gestells pendelnd aufgehängten Tragflächen
English title Airplane with oscillating aerodynamic surfaces mounted on transverse axis of frame
Tech fields Drachenflieger, Tragfläche, frame, stability, airplane, airfoil
Filing date 1908/07/31
Full specification filed date
Application number
Grant date
Granted? Yes
Publication date 1911/03/11
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories DE 77h.5
CPCs CPC B64C3/385
Family year
First filing? No
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID 10015809
Number of text pages 4
Number of diagram pages 1
Number of figures 3
Number of claims 4