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US Patent: 984,182
Magnetizable wedge for dynamo-electric machines
Patentee: John M. Barr (exact or similar names) - Wilkinsburg, PA USPTO Classifications: 310/214 Tool Categories: electrical devices : electric motors : induction motors Assignees: Westinghouse Electric & Mfg. Co. - Pittsburgh, PA Manufacturer: Westinghouse Electric & Mfg. Co. - Pittsburgh, PA Witnesses: Charles W. McGhee R. J. Dearborn	Patent Dates: Applied: Aug. 02, 1909 Granted: Feb. 14, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Westinghouse Electric & Mfg. Co.
Description: Seen on a 3 HP 3-phase Westinghouse induction motor along with numerous other patents spanning 1898 to 1915.

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