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Improvement in Road-Scrapers.

Description: Patent for an improvement in road-scrapers, illustration included.
Date: March 17, 1874
Creator: Mayfield, William Dudley
Partner: UNT Libraries Government Documents Department

Piano-Action

Description: Patent for a new piano-action that will get rid of unwanted sounds and reduce the amount of cushioning needed. Other goals are to ensure that strings cannot not be prevented from vibrating, and that a certain sound can be made.
Date: March 17, 1914
Creator: Blessing, John T.
Partner: UNT Libraries Government Documents Department

Automatic Fire-Alarm.

Description: Patent for an improved automatic fire-alarm, which will sound an alarm, release water from pipes, and alert the fire station.
Date: March 17, 1914
Creator: Singleton, Joseph J. C.
Partner: UNT Libraries Government Documents Department
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