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US Patent: 2,558,275
Lathe Control Mechanism
Patentees: Harold J. Siekmann (exact or similar names) - Cincinnati, OH Harry C. Kemper (exact or similar names) - Goshen Township, Clermont County, OH Nelson D. Cooper (exact or similar names) - Mariemont, Hamilton County, OH USPTO Classifications: 82/117, 82/134, 82/153, 82/900 Tool Categories: metalworking machines : machine tool controls metalworking machines : metal lathes : engine lathes Assignees: R. K. Le Blond Machine Tool Co. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 21, 1949 Granted: Jun. 26, 1951 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for R. K. Leblond Machine Tool Co.

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