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US Patent: 12,507
Cut-off valve for steam-engines
Patentee:
Noble T. Greene - Bridgeport, CT

USPTO Classifications:
251/251

Tool Categories:
propulsion and energy : steam engines : steam engine valve gear

Assignees:
None

Manufacturer:
Providence Steam Engine Co. - Providence, RI

Witnesses:
William T. Bishop
Andrew De Lacy

Patent Dates:
Granted: Mar. 13, 1855

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Providence Steam Engine Co.

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