Patent US-1907-867029
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- Improvements to propeller blades for "water or aerial navigation" – Friedel worked on both. Deals with shape and arrangement of blades.
- Inventor location: Cleveland, Ohio
Sources
- Patent 867029 document and bibliographic info on espacenet
- Patent 867029 at google patents
| Year filed | 1907 |
|---|---|
| Year granted | 1907 |
| Office | US |
| Patent number | 867029 |
| Inventors | Albert Hugo Friedel |
| Inventor country | US |
| Inventor location | Cleveland, OH, Cuyahoga county, OH, Ohio |
| Applicant person | |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Propeller |
| English title | Propeller |
| Tech fields | propeller, propulsion, marine |
| Filing date | 1907-02-16 |
| Full specification filed date | |
| Application number | |
| Grant date | 1907-09-24 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 0.5 |
| Serial number | |
| Patent agent | Munn & Co. |
| Assigned to | |
| National tech categories | USPC 416/163, USPC 416/168R |
| IPCs | |
| CPCs | CPC B63H3/04 |
| Family year | |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 2 |
| Number of figures | |
| Number of claims |
