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Nut-Lock

Description: Patent for a nut lock. Illustrations included.
Date: September 6, 1910
Creator: Lance, Andrew M.
Partner: UNT Libraries Government Documents Department

Fire-Extinguishing Device.

Description: Patent for fire extinguishing devices to "supplying steam to the fluid so that oxygen sufficient to support combustion will not reach the flame" (lines 14-16).
Date: July 6, 1920
Creator: Byrd, Williman Harvey
Partner: UNT Libraries Government Documents Department
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