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US Patent: 526,484
Valve Mechanism
Patentee: David A. Decrow (exact or similar names) - Lockport, Niagara County, NY USPTO Classifications: 137/55 Tool Categories: propulsion and energy : steam engines : steam engine valve gear Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 28, 1894 Granted: Sep. 25, 1894 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Holly Mfg. Co.

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