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Demountable-Rim-Fasting Means.

Description: Patent for Improvement to Demoutable-Rim-Fastening Means. This device will hold the rim in place.
Date: July 20, 1920
Creator: Spero, David Lawrence
Partner: UNT Libraries Government Documents Department

Canal-Gate.

Description: Patent for an improvement to canal-gates that is "a simple and comparatively inexpensive contrivance for receiving a handle of the shank of a handle which is attached to the lock or gate" (lines 18-22) including an illustration.
Date: March 9, 1920
Creator: Perry, Charles Franklin
Partner: UNT Libraries Government Documents Department
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