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US Patent: 434,488
Electric Power Trasmission
Patentee: Elihu Thomson (exact or similar names) - Lynn, Essex County, MA USPTO Classifications: 307/12, 307/26, 318/558 Tool Categories: electrical devices : electric distribution systems Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 07, 1888 Granted: Aug. 19, 1890 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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