Carpenter Compound Hydraulic Engine, Patent Model
National Museum of American History

Carpenter Compound Hydraulic Engine, Patent Model

Carpenter, Oramill C. · 1878

nickel (overall material)
National Museum of American History
CC0 — Public Domain
National Museum of American History

The model was submitted to the U.S. Patent Office with the application for the patent issued to Oramill C. Carpenter, of Brooklyn, New York, December 17, 1878, no. 210915.

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