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Chain-Lock.

Description: Patent for an improvement in chain-locks. The improvement locks one end of a log chain to a car so that it cannot be accidentally released.
Date: October 1, 1918
Creator: Clarkson, Jay Caleb.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combination Valve and Cap Tool

Description: Patent for a combination valve cap and stem used to ease the process of deflating pneumatic tires by eliminating the need to keep track of a separate cap piece when removing the valve core, including illustrations and instructions for use.
Date: May 7, 1918
Creator: McComb, William Perry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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