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Patent for Engine Fan Belt Guards. This device helps the fan shift from slipping off mother vehicle engines.

Date: May 11, 1920

Creator: Brackett, Edward B.

Partner: UNT Libraries Government Documents Department

Patent for draft forming device for furnaces that uses steam to pass currents of air through furnaces

Date: January 11, 1916

Creator: Milner, J. D.

Partner: UNT Libraries Government Documents Department

Patent for a dipping tank for lumber for applying soda dips to lumber at sawmills.

Date: February 11, 1913

Creator: Trout, Walter C.

Partner: UNT Libraries Government Documents Department