Thomas Willis Pratt

Thomas Willis Pratt, (born 1812, Boston, Massachusetts)[1] was an American engineer. He is best known for his 1844 patent for the Pratt truss, which he designed with his father, Caleb Pratt.[2] He died in 1875.

Thomas and Caleb's Pratt Truss

References
  1. Evans, June; Evans, Benjamin. New England's Covered Bridges. University Press of New England. pp. Page 8. ISBN 1-58465-320-5.
  2. "Historic Bridges of Iowa". Retrieved February 8, 2008.


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