CC0 · no rights reserved
Dow Direct-Acting 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 to the U.S. Patent Office with the application for the patent issued to G. E. Dow, of San Francisco, California, November 4, 1879, no. 221220.
National Museum of American History’s own descriptionCredit lineDow Direct-Acting Steam Pump, Patent Model. 1879. Dow, George E.. National Museum of American History. CC0.
