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Thomas Willis Pratt

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Title: Thomas Willis Pratt  
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Subject: Truss
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Thomas Willis Pratt

Thomas and Caleb's Pratt Truss

Thomas Willis Pratt, born 1812 in Boston, Massachusetts, US,[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.


  1. ^ Evans, June; Evans, Benjamin. New England's Covered Bridges. University Press of New England. pp. Page 8.  
  2. ^ "Historic Bridges of Iowa". Retrieved February 8, 2008. 
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