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US Patent: 867,168
Controller-regulator
Patentee: Emmett W. Stull (exact or similar names) - Norwood, OH USPTO Classifications: 74/565 Tool Categories: electrical devices : electric motors : motor controls Assignees: Allis-Chalmers Co. - Milwaukee, WI Bullock Electric Mfg. Co. - Norwood, OH Manufacturer: Allis-Chalmers Co. - Milwaukee, WI Witnesses: George B. Schley Fred J. Kinsey	Patent Dates: Granted: Sep. 24, 1907 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Allis-Chalmers Mfg. Co. Vintage Machinery entry for Bullock Electric Mfg. Co.
Description: "My invention relates to motor controllers and particularly to means for regulating the operation of controllers for railway motors."

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