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Clinical Thermometer.

Description: Patent for a new and improved thermometer. This design has "[u]pon the body of the instrument a scale, preferably equivalent to the centigrade . . . in which the zero-sign is placed at the normal temperature of the body, each degree being divided into five or ten parts according to the size of the instrument and reading supernormal and subnormal degrees" (lines 20-26).
Date: June 11, 1889
Creator: Hunstock, Robert H. & Chávez, Emigdio
Partner: UNT Libraries Government Documents Department

Flue-Cutter

Description: Patent for a flue cutter with a pair of pivoted arms, which can be detached, and a cutter-head.
Date: January 14, 1890
Creator: Bogusch, Robert J.; Zincke, August & Bogusch, Gustav
Partner: UNT Libraries Government Documents Department
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