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US Patent: 2,419,433
Comparator Gauge
Patentee: Willis Fay Aller (exact or similar names) - Dayton, Montgomery County, OH USPTO Classifications: 33/501.2 Tool Categories: metalworking tools : machinist tools : measuring tools : comparators Assignees: The Sheffield Corp. - Dayton, Montgomery County, OH Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Nov. 01, 1943 Granted: Apr. 22, 1947 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: Edward T. Noe jr. - patent attorney

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