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US Patent: 90,278
Safety Valve
Patentee:
James Linnard (exact or similar names) - Philadelphia, PA

USPTO Classifications:
137/522

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

Assignees:
James Linnard - Philadelphia, PA
William S. Hassell - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: May 18, 1869

Patent Pictures:
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