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Frost 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 submitted to the U.S. Patent Office with the application for the patent issued to Richard L. Frost, of Battle Creek, Michigan, February 11, 1890, no. 421355. The patent was assigned to the Union Manufacturing Co. of the same place.
National Museum of American History’s own descriptionSubjects
Credit lineFrost Steam Pump, Patent Model. 1890. Frost, Richard L.. National Museum of American History. CC0.
