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US Patent: 35,174
Improvement in valves for steam-engines
Patentees: Albert E. Redstone (exact or similar names) - Indianapolis, IN John H. Redstone (exact or similar names) - Indianapolis, IN USPTO Classifications: 91/12 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: George L. Hereth Frederick Lang	Patent Dates: Granted: May 06, 1862 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: At the time the patent was issued, John Redstone was manufacturing lath and shingle machines.

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