Loper Marine Steam Engine Patent Model. This model was submitted to the Patent Office with the application for the patent issued to R. F. Loper, of Philadelphia, Pennsylvania, August 28, 2849, no.

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

Keywords: engineering, industry, work