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Pin-Box and Fastener.

Description: Patent for a pin box fastener, which holds the tape inside the box while allowing the pins to be withdrawn.
Date: September 22, 1908
Creator: Kimbler, Henry Randolphus
Partner: UNT Libraries Government Documents Department

Drill-Stem Clamp for Rotary Drilling-Machines

Description: Patent for a rotary well drilling stem clamp which reduces wear on the machine and can be used with different size drill stems.
Date: September 22, 1908
Creator: Decker, Harry R.
Partner: UNT Libraries Government Documents Department
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