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US Patent: 2,590,151
Bore gauge head
Patentees: Thor H. Ljunggren (exact or similar names) - Springfield, VT Hesslar H. Gates (exact or similar names) - Charlestown, NH William J. Bryant (exact or similar names) - Springfield, VT USPTO Classifications: 33/543.1, 33/DIG.002, 451/143, 73/37.9 Tool Categories: metalworking machines : grinders : grinding attachments Assignees: Bryant Chucking Grinder Co. - Springfield, VT Manufacturer: Bryant Chucking Grinder Co. - Springfield, VT Witnesses: Unknown	Patent Dates: Applied: Jul. 23, 1949 Granted: Mar. 25, 1952 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Bryant Chucking Grinder Co.

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