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Leaf-Turner.

Description: Patent for a new and improved leaf turner which allows the piano player to turn the pages of their sheet music without taking their hands off the keyboard. This leaf turner is "noiseless and efficient in operation and...will respond instantly to the actuating impulse" (lines 21-23). It is not expensive to make, and securely holds music and releases it without effort.
Date: January 11, 1921
Creator: Holcom, Jarret C.
Partner: UNT Libraries Government Documents Department

Air Cycle.

Description: Patent for a pedal power "aeroplane" (line 9) with improvements to driving pedals and controlling the flight path.
Date: August 1, 1922
Creator: Kinnard, Laban B.
Partner: UNT Libraries Government Documents Department
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