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US Patent: 206,589
Safety-Valve
Patentee: Frederick Lunkenheimer (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 137/522, 137/542 Tool Categories: propulsion and energy : steam apparatus : steam safety valves Assignees: None Manufacturer: Lunkenheimer Valve Co. - Cincinnati, Hamilton County, OH Witnesses: Unknown	Patent Dates: Applied: May 14, 1878 Granted: Jul. 30, 1878 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Lunkenheimer Valve Co.

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