Patent DE-1918-347577
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Sources
- espacenet
- Inventor location: Cannstatt-Stuttgart
| Year filed | 1918 |
|---|---|
| Year granted | 1918 |
| Office | DE |
| Patent number | 347577 |
| Inventors | Hellmuth Hirth |
| Inventor country | DE |
| Applicant person | Hellmuth Hirth |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Stahlrohrpropeller |
| English title | Steel tube propeller |
| Tech fields | propellers, metallurgy, metal, subsystem |
| Filing date | 1918/09/18 |
| Full specification filed date | |
| Application number | 347577D |
| Grant date | 1918/09/18 |
| Granted? | Yes |
| Publication date | 1922/01/23 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | DE 77h.6 |
| IPCs | IPC B64C11/24 |
| CPCs | CPC B64C11/24 |
| Family year | 1918 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 10803964 |
| INPADOC family ID | 10080369 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 1 |
| Number of claims | 3 |
