Patent FR-1870-91325
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Brevet d'invention de 15 ans
- Grant date appears to be on the bottom of the first page of the patent, handwritten
- Inventor location: Bagnères-de-Bigorre (Hautes-Pyrénées)
Sources
| Year filed | 1870 |
|---|---|
| Year granted | 1871 |
| Office | FR |
| Patent number | 91325 |
| Inventors | Jean-Baptiste Duthu |
| Inventor country | FR |
| Inventor location | Hautes-Pyrénées |
| Applicant person | Jean-Baptiste Duthu |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Système d'appareil ou armature pour diriger les ballons aériens |
| English title | Balloon steering, system of apparatus or armature for balloon navigation |
| Tech fields | navigation, balloon |
| Filing date | 1870-12-09 |
| Full specification filed date | |
| Application number | |
| Grant date | 1871-06-30 |
| Granted? | 1 |
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| Related to aircraft? | 1 |
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| National tech categories | FR 5 |
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| Family year | 1870 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
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