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Patent for a road grader and scraper, which is drawn by a traction engine.

Date: December 8, 1908

Creator: Moon, Richard D. & Chamberlain, George N.

Partner: UNT Libraries Government Documents Department

Patent for an apparatus that is a mold for crafting hollow concrete walls. Illustration included.

Date: December 21, 1909

Creator: Nelson, William E.

Partner: UNT Libraries Government Documents Department