Patent FR-1912-443788
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- Inventor location:
Sources
- Aéro-Manuel 1914
- Original patent document and bibliography entry on espacenet
| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 443788 |
| Inventors | William Rome Boutwell |
| Inventor country | US |
| Applicant person | William Rome Boutwell |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Perfectionnements apportés aux hélices propulsives |
| English title | refinements brought to propeller blades |
| Tech fields | Propulsion |
| Filing date | 1912-05-14 |
| Full specification filed date | |
| Application number | FR443788(A) |
| Grant date | 1912-07-22 |
| Granted? | 1 |
| Publication date | 1912-10-02 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Brandon frères |
| Assigned to | |
| National tech categories | FR 6.2 |
| IPCs | IPC B63H1/12 |
| CPCs | CPC B63H1/12, CPC B63H1/15, CPC B63H1/18, CPC B63H1/20, CPC B63H1/26 |
| Family year | 1912 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 4 |
| Number of diagram pages | 1 |
| Number of figures | 10 |
| Number of claims | 4 |
