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Plow.
Patent for improvements in plows: "This invention relates more particularly to double mold board plows, but it is applicable to ordinary sulky and other plows having a rotary colter over the plowshare and friction wheel with acts as a rotating support or sole in rear of the plow" (lines 8-13).
Date:
September 15, 1891
Creator:
Wilson, William H.
System:
The Portal to Texas History