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US Patent: 2,749,812
Ball Bearing Nut and Screw Mechanism
Patentee: Theodore A. Wetzel (exact or similar names) - Milwaukee, Milwaukee County, WI USPTO Classifications: 409/146, 409/163, 74/424.82, 74/441, 74/89.38 Tool Categories: metalworking machines : milling machines metalworking machines : metalworking machine mechanisms : metalworking machine bearings Assignees: Kearney & Trecker Corp. - West Allis, Milwaukee County, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 21, 1952 Granted: Jun. 12, 1956 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Kearney & Trecker Co.

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