Patent ES-1912-54571
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The priority date 1912-12-28 only shows up on the Bültzingslöwen search results page on Espacenet. It may be this patent's filing date, or that of a predecessor. Likewise the date 1913-02-16 used as titular data on Espacenet is only possibly that date granted. Spanish data is very difficult on Espacenet. The data is both sparse an indefinite in its application.
The priority date above-mentioned is incidentally fourteen days later than the filing date of Patent HU-1912-61665
See Patent HU-1912-61665 for diagrams and so forth.
Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: New York
| Year filed | 1912 |
|---|---|
| Year granted | 1913 |
| Office | ES |
| Patent number | 54571 |
| Inventors | Bruno von Bültzingslöwen |
| Inventor country | US |
| Applicant person | Bruno von Bültzingslöwen |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Una máquina voladora |
| English title | Flying machine, human-powered, propellers, quite elaborate |
| Tech fields | Propellers, human-powered |
| Filing date | 1912-12-28 |
| Full specification filed date | |
| Application number | |
| Grant date | 1913-02-16 |
| Granted? | |
| Publication date | 1913-02-16 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
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| Family year | 1912 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
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