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US Patent: 3,265,914
Collector Ring Assembly
Patentees: Floyd R. Derby (exact or similar names) - Freeport, Stephenson County, IL Robert J. Derber (exact or similar names) - Beloit, Rock County, WI USPTO Classifications: 310/232, 439/20 Tool Categories: electrical devices : electric generators electrical devices : electric motors Assignees: Fairbanks, Morse Inc. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 21, 1964 Granted: Aug. 09, 1966 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Fairbanks Morse & Co.

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