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Patent for an aerial vehicle. Illustrations included.

Date: January 2, 1912

Creator: Rex, Cleveland A.

Partner: UNT Libraries Government Documents Department

Patent for a valve controlling mechanism for train air brake systems that can be used when a car derails.

Date: June 11, 1912

Creator: Strader, Perry T.

Partner: UNT Libraries Government Documents Department

Patent for a padlock seal for train cars. Illustrations included.

Date: April 30, 1912

Creator: Lawler, Claude B.

Partner: UNT Libraries Government Documents Department