Patent FR-1911-447187
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Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: département Seine, France
| Year filed | 1911 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 447187 |
| Inventors | Lucien Chauvière |
| Inventor country | FR |
| Applicant person | Lucien Chauvière |
| Applicant firm | |
| Applicant type | COMPANY |
| Applicant is inventor? | Yes |
| Original title | Dispositifs permettant d'augmenter le rendement d'une hélice |
| English title | Devices for increasing the efficiency of a propeller |
| Tech fields | propellers, propulsion |
| Filing date | 1911/10/20 |
| Full specification filed date | |
| Application number | 447187D |
| Grant date | 1912/10/21 |
| Granted? | Yes |
| Publication date | 1912/12/26 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Armengaud jeune |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/00 |
| CPCs | CPC B64C11/00 |
| Family year | 1911 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19265509 |
| INPADOC family ID | 5335218 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 4 |
