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US Patent: 1,763,201
Magnetic throw-off for grinding machines
Patentee: Frederick D. Van Norman (exact or similar names) - Springfield, MA USPTO Classifications: 451/17 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: May 18, 1928 Granted: Jun. 10, 1930 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: Improvements to patent RE13,892.

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