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US Patent: 2,641,875
Grinding Wheel Speed Regulator
Patentees: Roy G. Kirby (exact or similar names) - Cincinnati, Hamilton County, OH John M. Morgan, Jr. (exact or similar names) - Cincinnati, Hamilton County, OH Jacob Decker (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 451/294 Tool Categories: metalworking machines : grinding machines metalworking machines : metalworking machine mechanisms Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 26, 1951 Granted: Jun. 16, 1953 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.

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