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Milling-Machine.

Description: Patent for a milling machine that executes thorough removal of dirt and other substances.
Date: February 3, 1914
Creator: Lakey, William Ray.
Partner: UNT Libraries Government Documents Department

Drill Bit

Description: Patent for drill bit, adapted for use in boring (or drilling) of oil wells with bit shank and enlarged head of angularly mounted rotary cutters (for outward cutting of well walls).
Date: January 3, 1922
Creator: Thomas, Martin E.
Partner: UNT Libraries Government Documents Department

Book-Rest for Writing Desks and Tables.

Description: Patent for an improved book-rest for writing desks and tables used to support record-books upon desks or tables in such positions that they can be conveniently used.
Date: October 3, 1882
Creator: Terrill, Reuben W.
Partner: UNT Libraries Government Documents Department
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