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US Patent: 1,020,921
Safety Valve
Patentee: Edward F. Miller (exact or similar names) - Newton, Middlesex County, MA USPTO Classifications: 137/536, 137/542 Tool Categories: propulsion and energy : steam apparatus : steam safety valves Assignees: Crosby Steam Gage & Valve Co. - Boston, Suffolk County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 27, 1910 Granted: Mar. 19, 1912 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Crosby Steam Gage & Valve Co.

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