Patent FR-1908-393997
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Sources
- Original patent document and bibliography entry on espacenet
- on google patents
- L'Aérophile, 1 Mar 1909, p117
- Inventor location: département Seine, France
| Year filed | 1908 |
|---|---|
| Year granted | 1908 |
| Office | FR |
| Patent number | 393997 |
| Inventors | Désiré Sival |
| Inventor country | FR |
| Applicant person | Désiré Sival |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Hélicoptère |
| English title | Helicopter |
| Tech fields | helicopter |
| Filing date | 1908/09/05 |
| Full specification filed date | |
| Application number | 393997D |
| Grant date | 1908/11/13 |
| Granted? | Yes |
| Publication date | 1909/01/11 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | J. Germain |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C27/04 |
| CPCs | CPC B64C27/04, CPC B64C2700/6281 |
| Family year | 1908 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19213451 |
| INPADOC family ID | 5292611 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 4 |
