Patent HU-1914-68447
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Sources
- the Szellemi Tulajdon Nemzeti Hivatala anglophone database, choosing the Patent option, among the Advanced search on the left of the page, and using patent classification “V/h” as the keyword
- (Virtual or direct analogue access to Szabadalmi Kőzlőny will facilitate the gathering of other data.)
- Inventor location: Debrecen, Hungary
| Year filed | 1914 |
|---|---|
| Year granted | 1915 |
| Office | HU |
| Patent number | 68447 |
| Inventors | Kálmán Fekete |
| Inventor country | HU |
| Applicant person | Kálmán Fekete |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | yes |
| Original title | Helicoplan |
| English title | Helicoplane |
| Tech fields | airplane, helicopter, hybrid, propellers, ascension, lift, Helicoplane |
| Filing date | 1914.07.18 |
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| Granted? | |
| Publication date | 1915.11.01 |
| Supplementary to patent | |
| Related to aircraft? | yes |
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| National tech categories | HU V/h |
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| Family year | 1914 |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
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