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US Patent: 1,041,451
Means for attaching blades of tools to handles
Patentees: George O. Leopold (exact or similar names) - Philadelphia, PA Thomas J. Fegley (exact or similar names) - Philadelphia, PA USPTO Classifications: 279/102, 279/81 Tool Categories: screwdrivers Assignees: North Brothers Manufacturing Co. - Philadelphia, PA Manufacturer: North Brothers Manufacturing Co. - Philadelphia, PA Witnesses: William A. Barr Walter Chism	Patent Dates: Applied: Feb. 28, 1910 Granted: Oct. 15, 1912 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward George Langford

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