Patent FR-1911-423325
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- Inventor location: Rue Cassini 7, Paris, département Seine, France
Sources
- Original patent document and bibliography entry on espacenet
| Year filed | 1910 |
|---|---|
| Year granted | 1911 |
| Office | FR |
| Patent number | 423325 |
| Inventors | Pol de Czernichowski |
| Inventor country | FR |
| Applicant person | Pol de Czernichowski |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Dispositif permettant d'augmenter le rendement des hélices aériennes tout en diminuant leur résistance à l'avancement dans l'air, pour aéroplanes et ballons dirigeables |
| English title | Device for increasing the efficiency of overhead propellers while reducing their resistance to advancement in the air, for airplanes and airships |
| Tech fields | aerofoil, propeller blade, aerial propeller |
| Filing date | 1910-12-05 |
| Full specification filed date | |
| Application number | 423325D |
| Grant date | 1911-02-11 |
| Granted? | 1 |
| Publication date | 1911-04-13 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/00 |
| CPCs | CPC B64C11/00 |
| Family year | 1910 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19242149 |
| INPADOC family ID | 5315303 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 2 |
