Patent FR-1909-397291
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Seemingly mistitled in espacenet bibliography as "Improvements in and relating to electric discharge devices"
Supplementary to German original filed 2 October 1908.
Sources
- espacenet Original patent document and bibliography entry on espacenet
| Year filed | 1908 |
|---|---|
| Year granted | 1909 |
| Office | FR |
| Patent number | 397291 |
| Inventors | W.J. Hoffmann |
| Inventor country | DE |
| Applicant person | W.J. Hoffmann |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Gouvernail de tête ou d'altitude pour aérostats |
| English title | |
| Tech fields | navigation |
| Filing date | 1908/12/09 |
| Full specification filed date | |
| Application number | 397291D |
| Grant date | 1909/02/19 |
| Granted? | Yes |
| Publication date | 1909/05/04 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | E. Blétry |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64B1/00, IPC H01J1/20 |
| CPCs | CPC B64B1/00, CPC H01J1/20 |
| Family year | 1908 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19216682 |
| INPADOC family ID | 5295310 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 6 |
| Number of claims | 5 |
