| http://www.w3.org/ns/prov#value | - The Schroeder machine was a straddle-row cultivator with a frame, consisting of wheels, axle, and tongue, but with a peculiar device for securing the plows to the frame by means of what he terms an arched beamyoke, which was bolted or pivoted at its center to the tongue in such a manner as that either end of said beam-yoke may be advanced or receded with its respective plow without disturbing t
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