Patent GB-1915-4068
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From google patents: "Screw propellers. In hollow propellers particularly designed for aircraft and made from sheet metal plates n joined at the edges, metal liners b having one or more stiffening ribs extend through or across the hub from one blade to another."
- Tech classes: CPC B64C11/04: Blade mountings, CPC B64C11/24: Hollow blades
- Inventor location:
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
| Year filed | 1915 |
|---|---|
| Year granted | 1915 |
| Office | GB |
| Patent number | 4068 |
| Inventors | Henry Leitner |
| Inventor country | GB |
| Inventor location | |
| Applicant person | Henry Leitner |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | |
| English title | |
| Tech fields | |
| Filing date | 1915-03-15 |
| Full specification filed date | |
| Application number | 191504068D |
| Grant date | |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B64C11/24, CPC B64C11/04 |
| Family year | 1915 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | 23677609 |
| INPADOC family ID | 11159665 |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | |
| Number of claims |
