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US Patent: 944,809
Safety Valve
Patentee: Harry C. McCarthy (exact or similar names) - Williamsport, Lycoming County, PA USPTO Classifications: 137/535 Tool Categories: propulsion and energy : steam apparatus : stationary boilers : steam valves Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 07, 1907 Granted: Dec. 28, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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