Patent FR-1911-421077
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Air propeller with adjustable pitch
- Inventor location: Gironde, France
Sources
- Original patent document and {{esp|FR|421077A biblio entry] at espacenet web site
| Year filed | 1909 |
|---|---|
| Year granted | 1910 |
| Office | FR |
| Patent number | 421077 |
| Inventors | Valentin Purrey |
| Inventor country | FR |
| Inventor location | |
| Applicant person | Valentin Purrey |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Hélice aérienne à pas réglable |
| English title | Air propeller with adjustable pitch |
| Tech fields | propeller |
| Filing date | December 11, 1909 |
| Full specification filed date | |
| Application number | 421077D |
| Grant date | December 12, 1910 |
| Granted? | Yes |
| Publication date | February 14, 1911 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Schwab |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/30 |
| CPCs | CPC B64C11/30 |
| Family year | 1909 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19239949 |
| INPADOC family ID | 5313435 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 7 |
| Number of claims | 2 |
