Patent FR-1898-274981
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- Inventor location:
Sources
- L'Aérophile, April-May 1898, p76
- -- Not on espacenet yet
| Year filed | 1898 |
|---|---|
| Year granted | 1898 |
| Office | FR |
| Patent number | 274981 |
| Inventors | Léopold |
| Inventor country | |
| Inventor location | |
| Applicant person | Léopold |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Perfectionnements apportés aux appareils pour la transmission électrique de signaux |
| English title | improvements to electric signal transmission |
| Tech fields | instrument, electricity, transmission |
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| Application number | |
| Grant date | 1898-02-12 |
| Granted? | 1 |
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| Supplementary to patent | |
| Related to aircraft? | 1 |
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| National tech categories | FR 6.3 |
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| Family year | 1898 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
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