Patent FR-1871-91449
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This is a patent of 15 years.
Inventor location: Paris, rue de Châlons, 22
Sources
- CdB (1871 ; this is the year pertinent to filing, though the book was published in the following year.)
- File:Catalogue des brevets 1872.jpg (right)
- [1]
- [2]
| Year filed | |
|---|---|
| Year granted | 1871 |
| Office | FR |
| Patent number | 91449 |
| Inventors | Mathias |
| Inventor country | FR |
| Applicant person | Mathias |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Appareil destiné à augmenter l’effet utile des propulseurs à hélices des bateaux à vapeurs |
| English title | Apparatus designed to increase the practical effect of blade propellers in steam boats |
| Tech fields | propulsion, propellers, steam |
| Filing date | |
| Full specification filed date | |
| Application number | |
| Grant date | January 31, 1871 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Partially |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | FR 6.3 |
| IPCs | |
| CPCs | |
| Family year | |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | |
| Number of claims |
