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Sash Lock

Description: Patent for a sash lock. This invention pertains to railway cars. Illustration included.
Date: November 8, 1904
Creator: Hughes, Henry B.
Partner: UNT Libraries Government Documents Department

Well-Drill Wrench.

Description: Patent for a well drill wrench that is easily adjustable for different sized drill chucks. Its designs makes rotating the wrench smoother and less likely to slip off of drill chucks.
Date: November 8, 1921
Creator: Ellinger, William H.
Partner: UNT Libraries Government Documents Department
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