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US Patent: 2,308,011
Lead Tester for Screw Threads
Patentee: Stanley G. Johnson (exact or similar names) - Hartford, CT USPTO Classifications: 33/199R Tool Categories: layout tools : measurement gauges Assignees: Niles-Bement-Pond Co. - West Hartford, CT Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: May 10, 1941 Granted: Jan. 12, 1943 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Niles-Bement-Pond Co.
Description: Joseph K. Schofield - patent attorney

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