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Low-Pressure Alarm and Indicator for Air-Brakes.

Description: Patent for "air-brake mechanisms in general, and more particularly to the alarms for giving warning when the pressure in the train-pipe drops to a predetermined point and for giving a visual signal when such condition exists" (p. 1, lines 8-13).
Date: October 25, 1900
Creator: Parsons, Avery H.
Partner: UNT Libraries Government Documents Department

Plow-Stock.

Description: Patent for certain new and useful improvements in plow stocks, including instructions and illustrations.
Date: March 6, 1900
Creator: Fillip, Joseph W.
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator.

Description: Patent for certain new an useful improvements in acetylene gas apparatus, including instructions and illustrations.
Date: January 30, 1900
Creator: Ruthenberg, William
Partner: UNT Libraries Government Documents Department
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