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US Patent: 1,886,851
Telescopic Screw
Patentee: Theodore Trecker (exact or similar names) - Milwaukee, Milwaukee County, WI USPTO Classifications: 254/102, 409/227 Tool Categories: metalworking machines : milling machines metalworking machines : metalworking machine mechanisms Assignees: Kearney & Trecker Corp. - West Allis, Milwaukee County, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 24, 1928 Granted: Nov. 08, 1932 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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