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US Patent: 3,448,294
Multiphase Power Switching Circuit
Patentees: Robert M. Henry (exact or similar names) - Williams Bay, Walworth County, WI Richard Zechlin (exact or similar names) - Beloit, Rock County, WI USPTO Classifications: 307/13, 327/454, 327/460, 327/463, 327/494, 327/502 Tool Categories: electrical devices : electronic circuitry and apparatus Assignees: Fairbanks, Morse Inc. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 15, 1965 Granted: Jun. 03, 1969 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Fairbanks, Morse & Co.

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