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US Patent: 1,870,350
Adjustable boring head
Patentee: Frederick D. Van Norman (exact or similar names) - Springfield, MA USPTO Classifications: 408/175 Tool Categories: trade specific : vehicle repairer : vehicle mechanic : cylinder maintenance Assignees: Van Norman Machine Tool Co. - Springfield, MA Manufacturer: Van Norman Machine Tool Co. - Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Mar. 01, 1930 Granted: Aug. 09, 1932 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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