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US Patent: 953,031
Grinding and polishing machine
Patentees: John C. Blevney (exact or similar names) - Newark, NJ John Hausman (exact or similar names) - Newark, NJ USPTO Classifications: 451/309, 451/387, 451/489 Tool Categories: woodworking machines : sanding machines Assignees: Atha Tool Co. - Newark, NJ Manufacturer: Production Machine Co. - Greenfield, MA Witnesses: William O. Schraft Otto Kuhn	Patent Dates: Applied: May 31, 1907 Granted: Mar. 29, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Production Machine Co.

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