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US Patent: 160,921
Machine for Grinding Lathe Centers
Patentee: Martin R. Lemman (exact or similar names) - Hamilton, Butler County, OH USPTO Classifications: 451/436 Tool Categories: metalworking machines : metal lathes : metal lathe accessories and attachments metalworking machines : grinders : cylindrical grinders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 24, 1874 Granted: Mar. 16, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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