Trowbridge Steam Generator Patent Model. This model was submitted to the Patent Office with the application for the patent issued to W. P. Trowbridge, of New Haven, Connecticut, January 1, 1878, no.

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

Keywords: engineering, industry, work