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US Patent: 2,578,410
Open-Ended Ratchet Wrench
Patentee: Willis J. Filiatreault (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 81/58.2 Tool Categories: wrenches : ratchet wrenches Assignees: Willis J. Filiatreault - Chicago, Cook County, IL Aaron T. Perbohner - Chicago, Cook County, IL Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 29, 1949 Granted: Dec. 11, 1951 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz

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