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Patent for a hydraulic swivel used with wells including instructions and illustrations.

Date: May 16, 1911

Creator: Layne, Mahlon E.; Hall, Samuel N. & Layne, Charles F.

Partner: UNT Libraries Government Documents Department

Patent for a notching means for wire winding machines for use in making well screens.

Date: May 2, 1911

Creator: Fisk, Lawnnedo

Partner: UNT Libraries Government Documents Department

Patent for a machine that smooths and polishes the rims of hats. Illustrations included.

Date: May 30, 1911

Creator: Pesses, Abraham M.

Partner: UNT Libraries Government Documents Department

Patent for a machine for mixing grains and other feed ingredients, with automatic feeding of the different ingredients into the mixing chamber.

Date: May 30, 1911

Creator: Richmond, George E.

Partner: UNT Libraries Government Documents Department