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US Patent: 2,076,508
Oscillating grinder
Patentee: Frederick D. Van Norman (exact or similar names) - Springfield, MA USPTO Classifications: 451/227 Tool Categories: metalworking machines : grinders Assignees: Van Norman Machine Tool Co. - Springfield, MA Manufacturer: Van Norman Machine Tool Co. - Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Apr. 09, 1936 Granted: Apr. 06, 1937 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.
Description: Grinder adapted to grinding spherical bearing races, which create higher forces against the grinding wheel.

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