UNT Libraries Government Documents Department - 4 Matching Results

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Draft-Equalizer.

Description: Patent for Draft Equalizer. Patent states this invention "relates to the new and useful improvements in draft-equalizers" (lines 10-11). Includes instructions and illustrations.
Date: October 7, 1919
Creator: Dudley, Thomas J. & Bryant, Marvin H.

Fastening

Description: Patent for fastening. This invention is comprised of a threaded member and a socket that are adapted to a screw. Illustration included.
Date: October 26, 1909
Creator: Percival, Herbert E. & Key, Brewer W.
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