Patent AT-1913-60799

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Patent AT-1913-60799

Sources

(This "Luftschraube"(propeller) patent makes reference to two Belgian parents dated 2 February 1910, and another dated 7 April 1911. It is a rather advanced sort of propeller, and one of its key figures is identical to figure 20 of Patent CH-1912-54064, though this latter, Swiss, patent makes no similar reference. The date references may or may not be to "perfectionnements" found within the later half of the complex following from Patent BE-1909-214032, the "Aéro-Merveil", the fantastic hybrid which dealt greatly in propellers, and in the "raréfaction", which was key to much of Wunderlich's work.)

Year filed 1910
Year granted 1913
Office AT
Patent number 60799
Inventors Alfred E. Wunderlich
Inventor country BE
Applicant person Alfred E. Wunderlich
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Luftschraube
English title Propeller
Tech fields propellers
Filing date October 13, 1910
Full specification filed date
Application number ATD60799
Grant date April 1, 1913
Granted? Yes
Publication date August 25, 1913
Supplementary to patent
Related to aircraft? Yes
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 2
Number of diagram pages 1
Number of figures 4
Number of claims 3