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US Patent: 201,862
Improvement in Exhaust Mechanisms for Locomotives and Other Steam-Engines
Patentee:
Henry G. Ashton (exact or similar names) - Somerville, Midlesex County, MA

USPTO Classifications:
122/437

Tool Categories:
propulsion and energy : steam apparatus : steam safety valves

Assignees:
Ashton Valve Co. - Hartford, Hartford County, CT

Manufacturer:
Ashton Valve Co. - Boston, Middlesex County, MA

Witnesses:
J. E. Maynadier
George O. G. Coale

Patent Dates:
Applied: Dec. 19, 1877
Granted: Apr. 02, 1878

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Ashton Valve Co.

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