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Knowles Steam Pump, Patent Model
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This model was filed with the application to the U.S. Patent Office for the patent issued to Lucius J. Knowles, of Worcester, Massachusetts, April 1, 1879, no. 231823.
National Museum of American History’s own descriptionSubjects
Credit lineKnowles Steam Pump, Patent Model. 1879. Knowles, Lucius J.. National Museum of American History. CC0.
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