Patent FR-1901-312997
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Year filed | |
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Year granted | 1901 |
Office | FR |
Patent number | 312997 |
Inventors | GRASSL |
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Applicant person | |
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Applicant is inventor? | 1 |
Original title | Appareil de navigation aérienne avec ailes à hélices à double action et ailes de direction rotative sur l'axe central |
English title | Navigable aircraft with directed wings and double-action propellers on a central axis |
Tech fields | airplane |
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Application number | |
Grant date | 1901-07-26 |
Granted? | 1 |
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Supplementary to patent | |
Related to aircraft? | Yes |
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Family year | 1901 |
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Cites these patents | |
Citations from after 1930 | |
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Sources
- L'Aérophile, Nov 1901, p280
- Original patent document and bibliography entry on espacenet
- on google patents
- Inventor location: