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US Patent: 1,575,558
Centreless Grinding Machine
Patentees: Sol Einstein (exact or similar names) - Cincinnati, Hamilton County, OH Lester F. Nenninger (exact or similar names) - Cincinnati, Hamilton County, OH Walter D. Archea (exact or similar names) - Norwood, Hamilton County, OH USPTO Classifications: 451/15, 451/244, 451/339 Tool Categories: metalworking machines : grinders : centerless grinders Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 18, 1924 Granted: Mar. 02, 1926 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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