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Improvement in Wagon-Brakes.
Patent for "wagons which have brakes applied to them, so constructed that in descending a grade the brakes will be automatically applied, and, in moving on a level or ascending a hill, the brakes will be relieved from the wheels." (Lines 6-11) Includes instructions and illustrations.
Date:
December 4, 1877
Creator:
Hart, Alfred
System:
The Portal to Texas History