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Rolling Cattle-Guard.
Patent for a serrated device that prevents cattle from escaping.
Date:
December 25, 1917
Creator:
Belto, Thomas M.
System:
The Portal to Texas History
Improvement in Plows.
Patent for an improvement in plow design, including illustrations.
Date:
February 25, 1873
Creator:
Nichols, James R.
System:
The Portal to Texas History