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Reaming-Drill.

Description: Patent for a reaming drill which is meant to improve cutting into hard rock.
Date: November 12, 1918
Creator: Reed, Clarence Edward
Partner: UNT Libraries Government Documents Department

Float-Valve.

Description: Patent for a float valve that is easy and inexpensive to manufactured. It may be used in all tanks.
Date: March 12, 1918
Creator: Lakios, George John
Partner: UNT Libraries Government Documents Department

Chimney-Cowl

Description: Patent for low cost chimney cowl improvements to insure proper draft and prevent fires.
Date: March 12, 1918
Creator: Burch, Robert S.
Partner: UNT Libraries Government Documents Department
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