Patent FR-1869-86777
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- Brevet d'invention de 15 ans ; 1 addition
- Inventor location: Paris (116, rue Neuve-des-Mathurins, Seine)
Sources
| Year filed | 1869 |
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| Office | FR |
| Patent number | 86777 |
| Inventors | De Birague |
| Inventor country | FR |
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| Original title | machine hydro-aérienne |
| English title | Hydro-aerial machine |
| Tech fields | hybrid, marine |
| Filing date | 1869-08-18 |
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| Related to aircraft? | Yes |
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| National tech categories | FR 2 |
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