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US Patent: 865,814
Motor-control system
Patentee:
William H. Powell - Norwood, OH

USPTO Classifications:
318/150, 318/154, 318/263, 322/4, 322/80

Tool Categories:
electrical devices : electric motors : motor controls

Assignees:
Bullock Electric Manufacturing Co. - Norwood, OH
Allis-Chalmers Co. - Milwaukee, WI

Manufacturer:
Allis-Chalmers Co. - Milwaukee, WI

Witnesses:
Fred J. Kinsey
George B. Schley

Patent Dates:
Applied: Jul. 27, 1906
Granted: Sep. 10, 1907

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Allis-Chalmers Manufacturing Co.
"Vintage Machinery" entry for Bullock Electric Manufacturing Co.

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