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Improvements in Processes of Refining Crude Cotton-Seed Oil

Description: Patent for a process to refine oil, specifically crude, cotton-seed oil, using caustic soda. Includes an explanation of how the process works.
Date: November 28, 1911
Creator: Chisholm, Jesse C.
Partner: UNT Libraries Government Documents Department

Electric Heater

Description: Patent for an electric heater that is insulated from foreign bodies or fluids. Illustrations included.
Date: February 28, 1911
Creator: Harvie, Arthur H. & Davis, William G.
Partner: UNT Libraries Government Documents Department
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