Patent AT-1913-60799
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(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 |
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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 |
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 | 4 |
Number of claims | 3 |