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US Patent: 1,696,452
Valve
Patentee: Fairfield E. Raymond (exact or similar names) - Boston, Suffolk County, MA USPTO Classifications: 137/476, 137/477 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: Jul. 21, 1923 Granted: Dec. 25, 1928 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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