Patent DE-1917-323641

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  • Inventor location: Neukölln

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Year filed 1917
Year granted 1920
Office DE
Patent number 323641
Inventors Christian Lorenzen
Inventor country DE
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Vorrichtung zur Veränderung der Flügelsteigung von Luftfahrzeugpropellern
English title Apparatus for altering the wing pitch of aircraft propellers
Tech fields propeller, barometer
Filing date 1917-04-24
Full specification filed date
Application number
Grant date
Granted? 1
Publication date 1920-08-03
Supplementary to patent Patent DE-1917-305040
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories DE 77h.6
IPCs IPC B64C11/34
CPCs CPC B64C11/34
Family year 1917
First filing?
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 1
Number of diagram pages 1
Number of figures 1
Number of claims