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Combination Plow.
Patent for improvements on the combination plow that can be converted into a single, double, or three plow, including illustrations.
Date:
October 28, 1890
Creator:
Walton, Jacob Gipson
System:
The Portal to Texas History
Wrench.
Patent for a new and useful improvement in monkey-wrenches to "provide an improved construction of the same whereby the clamping-jaws may be quickly and readily adjusted to the nut or tap which is to be engaged thereby" (line 19-23).
Date:
December 28, 1897
Creator:
Antony, Edwin Le Roy
System:
The Portal to Texas History