Patent NL-1919-6220
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Priority date 1918-08-15 is given in association with a British filing of that date.
Sources
- Original patent document and bibliography entry on espacenet
- Patent record in Netherlands Patent Office register
- Inventor location: Westminster, London
| Year filed | 1919 |
|---|---|
| Year granted | 1921 |
| Office | NL |
| Patent number | 6220 |
| Inventors | Alexander Albert Holle |
| Inventor country | GB |
| Applicant person | Alexander Albert Holle |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Draagvleugel voor vliegtuigen |
| English title | Hydrofoil for aircraft |
| Tech fields | subsystem, wings, lift, aerodynamics |
| Filing date | 1919-08-14 |
| Full specification filed date | |
| Application number | 12720 |
| Grant date | 1921-07-03 |
| Granted? | 1 |
| Publication date | 1920-11-01 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | NL 62, NL 62.7 |
| IPCs | IPC B64C3/48 |
| CPCs | CPC B64C3/48 |
| Family year | 1918 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 2 |
