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US Patent: 1,514,405
Variable-speed rolling-mill drive
Patentee: Howard H. Talbot (exact or similar names) - Wooster, OH USPTO Classifications: 72/234, 72/249 Tool Categories: trade specific : steel maker Assignees: Mackintosh-Hemphill Co. - Pittsburgh, PA Manufacturer: Mackintosh-Hemphill Co. - Pittsburgh, PA Witnesses: Unknown	Patent Dates: Applied: Jun. 21, 1921 Granted: Nov. 04, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Mackintosh, Hemphill & Co.

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