Johnston Air Compressor, Patent Model
National Museum of American History

Johnston Air Compressor, Patent Model

Johnston, William · 1879

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

This model was submitted to the U.S. Patent Office with the application for the patent issued to William Johnston, of Washington, DC, November 4, 1879, no. 221318.

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