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Plumbing System.

Description: Patent for "improvements in plumbing systems whereby the service-pipes will automatically drain themselves when a sufficiently low temperature is reached to congeal the water contained therein, thereby obviating frozen pipes and the resultant damage incident thereto." (Lines 8-14) Includes instructions and illustrations.
Date: November 3, 1896
Creator: Coleman, Thomas S. & Coleman, William P.
Partner: UNT Libraries Government Documents Department
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