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US Patent: 1,918,147
Carriage positioning mechanism for grinding machines
Patentee: Byron F. Stowell (exact or similar names) - Springfield, MA USPTO Classifications: 451/11, 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: Nov. 17, 1930 Granted: Jul. 11, 1933 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: This invention's "preferred embodiment" is for "an oscillating grinding machine adapted for the manufacture of races for ball bearings."

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