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US Patent: 2,921,437
Material Working Apparatus
Patentee: Ernest J. Svenson - Rockford, Winnebago County, IL USPTO Classifications: 285/919, 417/310, 60/375, 60/380, 60/383, 60/406, 60/428, 60/429, 60/456, 92/13 Tool Categories: metalworking machines : metalworking machine mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 16, 1954 Granted: Jan. 19, 1960 Patent Pictures: USPTO pdf tiff Google Patents Report data errors or omissions

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