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

  • Inventor location: Germany, likely Cannstatt-Stuttgart

Patent family descending from Patent DE-1912-12-23-Albert Hirth


Year filed 1912
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
Full specification filed date
Application number
Grant date
Granted?
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs
Family year 1912
First filing? 0
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
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