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Patent for improvement in horse-drawn cultivators.

Date: April 23, 1872

Creator: Jordan, Hugh Paxton

Partner: UNT Libraries Government Documents Department

Patent for changes in the construction of a cultivator.

Date: May 23, 1871

Creator: Walker, Leander

Partner: UNT Libraries Government Documents Department

Patent for a ladder that will allow its prop legs to be slided longitudinally of the main ladder legs to form an extension ladder.

Date: May 23, 1912

Creator: Vierheller, Paul E.

Partner: UNT Libraries Government Documents Department

Patent for a new, improved gang-plow for preparing and cultivating land for planting. Illustrations included.

Date: March 23, 1875

Creator: Scheumack, Stephen S.

Partner: UNT Libraries Government Documents Department