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Richards Balanced Valve, 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 submitted to the U.S. Patent Office with the application for the patent issued to Thomas Richards, of Lansingburg, New York, May 22, 1866, no. 54959.
National Museum of American History’s own descriptionCredit lineRichards Balanced Valve, Patent Model. 1866. National Museum of American History. CC0.
