Patent DE-1913-330776
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- Inventor location: Darmstadt, DE
- seems to have been much Template:Delayed by WWI
Sources
| Year filed | 1913 |
|---|---|
| Year granted | 1920 |
| Office | DE |
| Patent number | 330776 |
| Inventors | Hugo Lang |
| Inventor country | DE |
| Applicant person | Hugo Lang |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Druckflaeche fuer Fluegel, insbesondere von Flugzeugen, Luft- und Wasserpropellern |
| English title | Pressure surface for wings, in particular for airplanes, and for air and water propellers |
| Tech fields | wings, propellers, airfoils |
| Filing date | August 26, 1913 |
| Full specification filed date | |
| Application number | 330776D |
| Grant date | December 22, 1920 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | DE 77h.5 |
| IPCs | IPC B64C3/14 |
| CPCs | CPC B64C3/14 |
| Family year | 1913 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 10680054 |
| INPADOC family ID | 10067260 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 4 |
| Number of claims | 1 |
