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Patent for improvements to oil-burners. The text contains a description of the unique improvements and is accompanied by explanatory illustrations.

Date: August 21, 1917

Creator: Harrington, Edward A

Partner: UNT Libraries Government Documents Department

Patent for an oyster opener that opens an oyster in a single operation of the device while simultaneously cutting the oyster from its shell.

Date: August 26, 1913

Creator: Schmidt, Heinrich Fritz

Partner: UNT Libraries Government Documents Department

Patent for an improved cotton harvester for the purpose of increased efficiency, with illustrations and explanations.

Date: August 13, 1918

Creator: Stark, Alvin E. & Garrett, Myers A.

Partner: UNT Libraries Government Documents Department