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Process of Producing Tire-Patch Material.

Description: Patent for an improved tire patch material combination and production process, which results in less water absorption and better adhesion to the tire.
Date: May 11, 1920
Creator: Duffy, Clarence O.
Partner: UNT Libraries Government Documents Department

Prepay Time-Controlled-Service Apparatus.

Description: Patent for an improvement in prepay time controlled service apparatus that uses the solenoid and armature as a stopping means for the time mechanism.
Date: May 11, 1920
Creator: Thompson, William H. & Thompson, J. D.
Partner: UNT Libraries Government Documents Department
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