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Improvement in Car-Couplings.
Patent for car-couplings.
Date:
December 22, 1874
Creator:
McCormick, Charles C.
System:
The Portal to Texas History
Plow
Patent for a plow which may also be used to adjust a cultivator shovel. Illustrations included.
Date:
December 22, 1908
Creator:
Wigley, William P.
System:
The Portal to Texas History