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Improvement in Plows.

Description: Patent for "means whereby the beam of a plow may be elevated or depressed at the front end according to the depth to which it is intended that the plow shall run, and held securely at several points of adjustment." (Lines 11-16) Includes instructions and illustrations.
Date: November 17, 1874
Creator: Ihringer, August
Partner: UNT Libraries Government Documents Department