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US Patent: 79,021
Steam Safety Valve
Patentee:
John Souther - Boston, Suffolk County, MA

USPTO Classifications:
169/19

Tool Categories:
propulsion and energy : steam apparatus : steam safety valves

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jun. 16, 1868

Patent Pictures:
USPTO pdf tiff
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