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US Patent: 2,520,652
Adjustable Tool Handle
Patentees: Edward M. Pfauser (exact or similar names) - Elm Grove, Waukesha County, WI Sigmund Mandl (exact or similar names) - Wauwatosa, Milwaukee County, WI USPTO Classifications: 16/429, 74/544, 81/177.2 Tool Categories: wrenches : wrench components : wrench handle components Assignees: Blackhawk Mfg. Co. - Milwaukee, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 28, 1948 Granted: Aug. 29, 1950 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz

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