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Wheel-Rim.

Description: Patent for improvement to wheel rims providing "means for introducing oil thereinto and distributing it throughout the whole periphery" (lines 10-12).
Date: May 27, 1902
Creator: Harville, Walter S.
Partner: UNT Libraries Government Documents Department

Can-Opener.

Description: Patent for a can opener, which has a movable blade to allow for easy cleaning.
Date: May 31, 1910
Creator: Allen, Jasper McDonnel
Partner: UNT Libraries Government Documents Department