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US Patent: 466,026
Starting-valve for compound-engines
Patentee: Arthur Herbert Wallis (exact or similar names) - Basingstoke, Hampshire, England USPTO Classifications: 137/112 Tool Categories: propulsion and energy : steam engines : steam engine valve gear transportation : railroads : railroad locomotives : steam engine valve gear Assignees: None Manufacturer: Wallis & Steevens - Basingstoke, Hampshire, England Witnesses: H. W. Maiur H. J. Hofmeyr	Patent Dates: Applied: Apr. 28, 1891 Granted: Dec. 29, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Wallis & Steevens

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