Patent DE-1912-12-23-Albert Hirth
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This patent is only known to us at present by way of a reference found in a later-filed Austrian patent. Our sparse data therefore is partlt conjectural and based on the testimony of the inventor himself. This Albert Hirth was an engineer and businessman more generally, and the father of Hellmuth Hirth, an aviator and aero-innovator more generally who also notably worked with propellers
Sources
- Bibliographic data via Espacenet of Austrian patent making reference hereto
- Original via Espacenet of Austrian patent making reference hereto
- Inventor location: Germany, likely Cannstatt-Stuttgart
Patent family descending from Patent DE-1912-12-23-Albert Hirth
- Patent DE-1912-12-23-Albert Hirth (English title: Propeller with adjustable blades)
- Patent AT-1913-68090 (English title: Propeller with adjustable blades, Supplementary to patent: Patent DE-1912-12-23-Albert Hirth, National tech categories: AT 77d)
Year filed | 1912 |
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Year granted | |
Office | DE |
Patent number | |
Inventors | Albert Hirth |
Inventor country | DE |
Applicant person | Albert Hirth |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | 1 |
Original title | |
English title | Propeller with adjustable blades |
Tech fields | Airplane, Propellers |
Filing date | 1912/12/23 |
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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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