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US Patent: 1,961,442
Tool Holder
Patentee: David E. Johnson (exact or similar names) - Rockford, Winnebago County, IL USPTO Classifications: 470/191, 470/197, 470/205 Tool Categories: metalworking machines : metalworking machine tool holders specialty machines : nut or bolt making machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 16, 1932 Granted: Jun. 05, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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