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US Patent: 925,108
Motor Controlling Device
Patentees: Richard M. Klein (exact or similar names) - Madison, Dane County, WI David R. Sperry (exact or similar names) - Madison, Dane County, WI USPTO Classifications: 318/102, 318/164, 318/39 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine speed and direction changing mechanisms Assignees: Northern Electrical Mfg. Co. - Madison, Dane County, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 23, 1908 Granted: Jun. 15, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Northern Electrical Manufacturing Co.

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