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Process of Purifying Paraffin.

Description: Patent for improvements in the process of purifying paraffin wax.
Date: August 27, 1918
Creator: McAfee, Almer M.
Partner: UNT Libraries Government Documents Department

Attachment for Internal-Combustion-Engine Carbureters.

Description: Patent for Improvements in Attachments for Internal-Combustion-Engine Carbureters. The "explosive mixture entering the cylinders of the engine may be improved and in this way increase the efficiency of the engine" (lines 12-15).
Date: September 10, 1918
Creator: Atkinson, John P.
Partner: UNT Libraries Government Documents Department

Process and Formula for Tanning Hides.

Description: Patent for the formula and processing used in tanning hides that is cheaper and more effective.
Date: July 2, 1918
Creator: Moore, Rufus N.
Partner: UNT Libraries Government Documents Department
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