Patent FR-1892-217128.1
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Sources
- BOPI (1892, tome 12)
Year filed | 1892 |
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Year granted | |
Office | FR |
Patent number | 217128.1 |
Inventors | Backman |
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Applicant is inventor? | 1 |
Original title | cert d'add. au brevet pris, le 1 octobre 1891, pour un gouvernail gyroscopic |
English title | cert of addition to the patent taken, 1_ October 1891, for a gyroscopic rudder |
Tech fields | Navigation, gyroscope, rudder, [[subsystem
Filing date==1892-05-01]] |
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Granted? | 1 |
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Supplementary to patent | Patent FR-1891-217128 |
Related to aircraft? | Yes |
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Patent agent | Engelfred |
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National tech categories | FR 6.3 |
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Family year | 1892 |
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