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Bicycle-Gear.
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
System:
The Portal to Texas History
Speed-Operated Circuit-Closer.
Patent for an alarm trigger or stopping device on belt driven grain elevators.
Date:
July 3, 1919
Creator:
Touchy, Frank Earl
System:
The Portal to Texas History