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US Patent: RE255
Improved governor-valve for steam-engines
Alfred Judson - Rochester, NY
Junius Judson - Rochester, NY

USPTO Classifications:
277/505, 277/508, 277/522

Tool Categories:
propulsion and energy : steam engines : steam engine governors

Junius Judson - Rochester, NY

Spalding's Machine Shop - Lockport, NY

James Judson
H. Pratt

Patent Dates:
Granted: Jan. 10, 1854

Reissue Information:
Reissue of 7,755 (Nov. 05, 1850)

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Spalding's Machine Shop

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