Patent US-1890-442402
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The device is not electrical; current must refer to water flow here.
- Inventor location: Buffalo, Erie county, NY (FIPSloc=36029), New York county, NY (FIPSloc=36061, imputed by HistPat)
- Tech class CPC B64C27/54 Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
Sources
- Patent 442402 document and bibliographic info on espacenet
- Patent 442402 at google patents
| Year filed | |
|---|---|
| Year granted | 1890 |
| Office | US |
| Patent number | 442402 |
| Inventors | August Siegrist |
| Inventor country | US |
| Applicant person | August Siegrist |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Current-motor |
| English title | Current-motor |
| Tech fields | marine propulsion |
| Filing date | |
| Full specification filed date | |
| Application number | |
| Grant date | 1890-12-09 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 257730 |
| Patent agent | Wilhelar & Bonner? |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B64C27/54 |
| Family year | 1890 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 2 |
| Application ID | 46316437 |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 2 |
| Number of figures | 3 |
| Number of claims | 4 |
