King DirectActing Pump Valve Gear Patent Model. This model was submitted to the Patent Office with the application for the patent issued to John C. King, of New York, New York, September 20, 1870, no.

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Size: 1938px × 1289px
Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: engineering, industry, work