Patent AT-1912-52164

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(This could use more examination, but the emphasis is on a series of propellers, conjoined ion one axel. The patent is short, really one page, including the diagram.)

Sources

Year filed 1909
Year granted 1911
Office AT
Patent number
Inventors Alfred E. Wunderlich
Inventor country BE
Applicant person Alfred E. Wunderlich
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Flugmaschine
English title Flying machine (propellers)
Tech fields propellers
Filing date August 27, 1909
Full specification filed date
Application number
Grant date August 15, 1911
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? No
Serial number
Patent agent
Assigned to
National tech categories AT 77d
IPCs
CPCs
Family year
First filing? No
Number of citations
Cited by
Application ID
INPADOC family ID
Number of text pages 1
Number of diagram pages 1
Number of figures 1
Number of claims