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Electric Clock.

Description: Patent for new and useful improvements in electrically operated clocks, including instructions and illustrations.
Date: February 13, 1900
Creator: Iversen, Henry
Partner: UNT Libraries Government Documents Department

Pipe-Tongs.

Description: Patent for pipe tongs used for rotary well boring machinery. The tongs are designed to be carried with and used by rotary machines.
Date: February 13, 1912
Creator: Johnston, Horace G.
Partner: UNT Libraries Government Documents Department
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