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US Patent: 1,993,830
Grinding Machine
Patentee: Richard E. Conover (exact or similar names) - Cincinnati, OH USPTO Classifications: 33/DIG.2, 451/1, 451/19, 451/21, 451/22, 451/242, 451/6, 73/37.6 Tool Categories: metalworking machines : grinding machines Assignees: Cincinnati Grinders, Inc. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 11, 1933 Granted: Mar. 12, 1935 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Grinders, Inc.

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