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US Patent: 2,320,606
Work holder
Patentee: John Jesionowski (exact or similar names) - Hartford, CT USPTO Classifications: 269/242, 269/285 Tool Categories: work holding : vises : metalworking machine vises Assignees: None Manufacturer: Ideal Tool & Die Co. - Schenectady, NY Witnesses: Unknown	Patent Dates: Applied: Dec. 11, 1940 Granted: Jun. 01, 1943 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews "Vintage Machinery" entry for Ideal Tool & Die Co.
Description: This patent is a companion to patent 2,370,042, constituting a "movable jaw adapted to hold the work during grinding".

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