Pitts and Gluyas Patent Model of a Steam Condenser ca 1872. This model was filed with the application to the Patent Office for Patent Number 131,779 issued to Washington R. Pitts and George K. Gluyas of San Francisco, California, on October 1, 1872.

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

Keywords: engineering, industry, work