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Air-Lift Pump

Description: Patent for an air lift pump. Illustrations included.
Date: July 30, 1912
Creator: Holmgreen, Julius H. & Underwood, William H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an aeroplane. This invention does not use any mechanism to maintain the planes equilibrium. Illustration included.
Date: November 5, 1912
Creator: Goebel, Alois
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an improvement to aeroplanes which includes movable horizontal and vertical planes (or curtains).
Date: March 26, 1912
Creator: Blewett, Baxter W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Air-Cycle

Description: Patent for an air cycle that allows a person to fly by pedaling. Illustrations included.
Date: January 9, 1912
Creator: Price, Joseph H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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