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US Patent: 1,434,128
Socket wrench
Patentee: George O. Leopold (exact or similar names) - Philadelphia, PA USPTO Classifications: 279/79, 81/124.6 Tool Categories: Assignees: North Brothers Manufacturing Co. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 22, 1921 Granted: Oct. 31, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen "Vintage Machinery" entry for North Bros. Manufacturing Co.

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