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US Patent: 486,099
Valve for Steam Engines
Patentee: Hamlin F. Frisbie (exact or similar names) - Covington, Kenton County, KY USPTO Classifications: 137/596, 137/596.17, 137/637.2 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 10, 1892 Granted: Nov. 15, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Frisbie Engine and Machine Co.

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