Patent DE-1909-236190

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  • Inventor location: Deuben, by Dresden

Sources


Year filed 1909
Year granted 1911
Office DE
Patent number 236190
Inventors Carl Kropp
Inventor country DE
Applicant person Carl Kropp
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Wendeflügelrad
English title Turning impeller
Tech fields propeller, variable-pitch
Filing date 1909-06-22
Full specification filed date
Application number
Grant date 1911-06-30
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories DE 77h.11
IPCs IPC B64C39/00
CPCs CPC B64C39/003
Family year 1909
First filing? 1
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 2
Number of diagram pages 1
Number of figures 5
Number of claims 3