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US Patent: 439,300
Grinding and Polishing Machine
Patentee: Albert Manecke (exact or similar names) - Cerro Gordo, Piatt County, IL USPTO Classifications: 144/136.1, 451/236 Tool Categories: metalworking machines : grinders specialty machines : polishing and buffing machinery Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 25, 1889 Granted: Oct. 28, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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