Patent FR-1868-81456
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This patent, as found on INPI, has Dufrené listed as "mandataire".
Sources
- INPI: http://bases-brevets19e.inpi.fr/Thot/FrmFicheDoc.asp?idfiche=0277058&refFiche=0156494
- Brevet d'invention de 15 ans
- Inventor location: Paris (10, rue de la Fidélité, Seine)
| Year filed | |
|---|---|
| Year granted | 1868 |
| Office | FR |
| Patent number | 81456 |
| Inventors | André Crestadoro |
| Inventor country | FR |
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| Applicant person | |
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| Applicant type | |
| Applicant is inventor? | No |
| Original title | perfectionnements aux moyens et appareils employés dans la navigation aérienne |
| English title | improvements to the means and apparatus of aerial navigation |
| Tech fields | navigation |
| Filing date | June 25, 1868 |
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| Granted? | No |
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| Supplementary to patent | |
| Related to aircraft? | Yes |
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| National tech categories | FR 5 |
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| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
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