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US Patent: 2,431,021
Thread Checking Comparator Gauge
Patentee: Georges A. J. G. Bourdelais (exact or similar names) - Wallingford, Delaware County, PA USPTO Classifications: 269/254CS, 269/254R, 269/59, 33/199B, 33/199R Tool Categories: metalworking tools : machinist tools : measuring tools : comparators Assignees: Irene I. Bourdelais - Wallingford, Delaware County, PA Manufacturer: Not known to have been produced Witnesses: Walter Chisny	Patent Dates: Applied: Apr. 10, 1943 Granted: Nov. 18, 1947 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: William Steel Jackson & son - patent attorneys

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