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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:
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Mackintosh, Hemphill & Co.

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