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Arc-Lamp Attachment

Description: Patent for improving arc lamp attachments. The attachment allows an arc lamp to be able to use an incandescent lamp in place of the electrodes in an arc lamp. The attachment increases the efficiency and durability of the arc lamp.
Date: April 2, 1918
Creator: Pratt, James R.
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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