Patent GB-1893-2557
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Propellers on shaft driven by electromotor of the type described in Patent GB-1892-23460.
Sources
- Neilson, 1910, p.19
- espacenet
- Abridgment of patent specifications, 1893–96, p. 2
| Year filed | 1893 |
|---|---|
| Year granted | |
| Office | GB |
| Patent number | 2557 |
| Inventors | H. T. Barnett |
| Inventor country | |
| Applicant person | |
| Applicant firm | |
| Applicant type | |
| Applicant is inventor? | Yes |
| Original title | Counter-rotating propellers |
| English title | Counter-rotating propellers |
| Tech fields | propulsion, propeller |
| Filing date | February 6, 1893 |
| Full specification filed date | |
| Application number | |
| Grant date | |
| Granted? | Yes |
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| Supplementary to patent | |
| Related to aircraft? | Yes |
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| National tech categories | GB 4, GB 4 propel & steer |
| IPCs | |
| CPCs | |
| Family year | 1893 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
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