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Pipe Wrench or Clamp

Description: Patent for a pipe wrench or clamp. Illustration included.
Date: December 15, 1903
Creator: Hutchins, Charles N.
Partner: UNT Libraries Government Documents Department

Cattle Guard

Description: Patent for a cattle guard that will turn horses, cattle, mules, etc.
Date: December 3, 1901
Creator: Arnold, Eliphalet Lester
Partner: UNT Libraries Government Documents Department
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