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US Patent: 2,381,687
Drive for oscillating grinders
Patentees: Roger S. Pyne (exact or similar names) - Longmeadow, MA Edward A. Allen (exact or similar names) - Westfield, MA USPTO Classifications: 157/13, 451/121, 451/227, 74/82 Tool Categories: metalworking machines : grinders Assignees: Van Norman Co. - Springfield, MA Manufacturer: Van Norman Co. - Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Nov. 14, 1941 Granted: Aug. 07, 1945 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Van Norman Machine Tool Co.

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