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Plow.
Patent for a new and improved plow. This design consists in "[t]he combination, with a plow-beam, of a plow-standard pivotally secured to the rear end of said beam, a brace pivotally secured to the standard, and a sliding clamp for securing the front end of the brace to the beam" (lines 90-94).
Date:
April 13, 1886
Creator:
Ketchum, Joel Thomas
System:
The Portal to Texas History