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US Patent: 2,245,676
Tool attachment
Patentee: Emil M. Johnson (exact or similar names) - Jamestown, NY USPTO Classifications: 279/89, 83/698.91 Tool Categories: trade specific : tool and die maker metalworking machines : metalworking presses : punch presses : dies for punch presses Assignees: None Manufacturer: Producto Machine Co. - Bridgeport, CT Witnesses: Unknown	Patent Dates: Applied: Jun. 11, 1940 Granted: Jun. 17, 1941 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Producto Machine Co.
Description: This punch was improved in patent 3,063,319, granted to the same inventor and assigned to the Producto Machine Co., of Bridgeport, CT.

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