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US Patent: 603,475
Cut-off mechanism for steam-engines
Patentee: John Stumpf (exact or similar names) - Chicago, IL USPTO Classifications: 91/261, 91/333 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: None Manufacturer: Ridgway Dynamo & Engine Co. - Ridgway, PA Witnesses: R. Kiosche Joseph Hirth	Patent Dates: Applied: Oct. 23, 1896 Granted: May 03, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Ridgway Dynamo & Engine Co.

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