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Switch

Description: Patent for a switch. "This invention obviates likelihood of derailment by splitting the switches, so as to thereby secure a means for preventing the rolling stock from being thrown from the tracks." Illustration included.
Date: August 22, 1905
Creator: Hibbets, Charles M.
Partner: UNT Libraries Government Documents Department

Corn-Grinder

Description: Patent for a grinder of ordinary corn
Date: May 22, 1900
Creator: Zimmerman, Frank W.
Partner: UNT Libraries Government Documents Department