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US Patent: 1,257,548
Grinding and Polishing Machine
Patentee: William S. Thomson (exact or similar names) - Plantsville, CT USPTO Classifications: 384/253, 384/255 Tool Categories: specialty machines : polishing and buffing machinery Assignees: H. D. Smith & Co. - Plantsville, CT Manufacturer: Not known to have been produced Witnesses: George R. Bond Edward H. Curtis	Patent Dates: Applied: Apr. 26, 1917 Granted: Feb. 26, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: Louis M. Schmidt - patent attorney

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