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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

Band-Cutter and Feeder

Description: Patent for a band cutter and feeder which cuts the bands that tie bundles of grain and feeds the grain into a threshing machine. Illustrations included.
Date: September 15, 1908
Creator: Richmond, George E.
Partner: UNT Libraries Government Documents Department
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