Knowles Steam Pump, Patent Model
National Museum of American History

Knowles Steam Pump, Patent Model

Knowles, Lucius J. · 1879

brass, wood (overall material)
National Museum of American History
CC0 — Public Domain
National Museum of American History

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.

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