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US Patent: 23,807
Steam-valve
Patentee: Harry H. Evarts (exact or similar names) - Chicago, IL USPTO Classifications: 137/625.21 Tool Categories: propulsion and energy : steam apparatus : steam safety valves Assignees: Harry H. Evarts - Chicago, IL Phineas E. Merrihew - Chicago, IL Manufacturer: Not known to have been produced Witnesses: Carlyle Whipple John M. Cooke	Patent Dates: Granted: Apr. 26, 1859 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Evarts & Merrihew
Description: Of interest because the inventor also received several patents for woodworking machinery.

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