National Museum of American History
Colwell Disulphide of Carbon Generator and Engine, Patent Model
Colwell, William S. · 1879
The model was submitted to the U.S. Patent Office with the application for the patent issued to William S. Colwell, of Pittsburgh, Pennsylvania, September 16, 1879, no. 219622.
🔒
Order museum-quality prints
Sign in to order prints, canvas, and more of this work. Browsing and full-resolution downloads stay free.