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US Patent: 471,155
Alternating Current Motor
Patentee: Elihu Thomson (exact or similar names) - Swampscott, Essex County, MA USPTO Classifications: 310/211, 310/261.1, 318/817 Tool Categories: electrical devices : electric motors : AC motors Assignees: Thomson-Houston Electric Co. - Lynn, Essex County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 17, 1891 Granted: Mar. 22, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Thomson-Houston Electric Co.

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