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Trowbridge Steam Generator, 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 W. P. Trowbridge, of New Haven, Connecticut, January 1, 1878, no. 198863; Automatic Boiler & Engine Co., assignee.
National Museum of American History’s own descriptionCredit lineTrowbridge Steam Generator, Patent Model. 1876. Trowbridge, William P.. National Museum of American History. CC0.