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Speed-Operated Circuit-Closer.

Description: Patent for an alarm trigger or stopping device on belt driven grain elevators.
Date: July 3, 1919
Creator: Touchy, Frank Earl
Partner: UNT Libraries Government Documents Department

Bicycle-Gear.

Description: Patent for a Bicycle-Gear meant to rotate the sprocket or other gear wheel on a bicycle, Including Illustrations.
Date: July 3, 1900
Creator: Brady, Alford
Partner: UNT Libraries Government Documents Department
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