| 词条 | Thomas Willis Pratt |
| 释义 |
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. References1. ^{{cite book |last=Evans |first=June |author2=Evans, Benjamin |title=New England's Covered Bridges |publisher=University Press of New England |isbn=1-58465-320-5 |pages=Page 8 }} {{authority control}}{{DEFAULTSORT:Pratt, Thomas Willis}}{{US-engineer-stub}}2. ^{{cite web |url=http://www.ole.dot.state.ia.us/historicbridge/construction.asp |title=Historic Bridges of Iowa |accessdate=February 8, 2008 }} 5 : 1812 births|1875 deaths|Engineers from Massachusetts|People from Boston|19th-century American inventors |
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