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US Patent: RE921
Improved valve for steam-engines
Patentee: Addison Crosby (exact or similar names) - Fredonia, NY USPTO Classifications: 137/596, 137/625.32 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: None Manufacturer: Not known to have been produced Witnesses: W. Thompson M. M. Livingston	Patent Dates: Granted: Mar. 06, 1860 Reissue Information: Reissue of 25,248 (Aug. 30, 1859) 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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