Patent FR-1893-233439.1
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Sources
- BOPI (1893, tome 13)
- Inventor location: rue de l'Esclache, 8, à Clermon-Ferrand
| Year filed | 1893 |
|---|---|
| Year granted | 1893 |
| Office | FR |
| Patent number | 233439.1 |
| Inventors | de Préneuf |
| Inventor country | FR |
| Applicant person | de Préneuf |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | cert d'addition au brevet pris, le17 octobre 1893, pour application du gaz ou de l'air comprimé à l'insubmersibilité des nacelles de ballons ou autres et séparation instantanée de la nacelle du ballon au moyen d'une suspension à échappement |
| English title | cert of addition to the patent taken, 17 October 1893, for the application of gas or of compressed air to the insubmersibility of balloon cockpits or other parts and instantaneous separation of the cockpit-basket by means of a suspension of exhaust(?) |
| Tech fields | safety, gas, nacelle, balloons |
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| Application number | |
| Grant date | November 15, 19893 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | Patent FR-1893-233439 |
| Related to aircraft? | Yes |
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| National tech categories | FR 6.3 |
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| Family year | 1893 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
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