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Improvement in Ditching and Excavating Machines.
Patent for "an improved machine for making ditches and other excavations, which shall be so constructed as to separate the slice from the soil, raise it, and deposit it at the side of the cut, which will feed itself forward automatically." (Lines 14-19) Includes instructions and illustrations.
Date:
September 18, 1877
Creator:
De Force, Samuel A.
System:
The Portal to Texas History