Patent FR-1912-447099
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- CPC B64C11/24: Hollow blades
- Inventor locations: Seine département, details in British patent
- Why is the parent patent German, when the inventors were French?
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 447099 |
| Inventors | Pierre Jacomy, François Jahan |
| Inventor country | FR |
| Applicant person | Pierre Jacomy, François Jahan |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Procédé de fabrication d'hélices métalliques, creuses et légères |
| English title | Manufacturing process of metal propellers, hollow and light |
| Tech fields | propellers, metal |
| Filing date | 1912-08-09 |
| Full specification filed date | |
| Application number | 447099D |
| Grant date | 1912-10-18 |
| Granted? | 1 |
| Publication date | 1912-12-21 |
| Supplementary to patent | Patent DE-1911-251309 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Dupont et Elluin |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/24 |
| CPCs | CPC B64C11/24 |
| Family year | 1911 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | 19265423 |
| INPADOC family ID | 5335139 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 2 |
