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US Patent: 2,677,447
Clutch tripping mechanism for punch presses and other machine tools
Patentee: Gustaf O. Johnson (exact or similar names) - Elkhart, IN USPTO Classifications: 192/24, 192/69.7, 192/93R Tool Categories: metalworking machines : metalworking presses : punch presses metalworking machines : metalworking machine mechanisms : metalworking machine clutches Assignees: Johnson Machine & Press Corp. - Elkhart, IN Manufacturer: Johnson Machine & Press Corp. - Elkhart, IN Witnesses: Unknown	Patent Dates: Applied: Dec. 26, 1951 Granted: May 04, 1954 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Johnson Machine & Press Corp.

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