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US Patent: 496,227
Try-Square Self Marking Try Square
Patentee: William Johnson (exact or similar names) - Hull, MA USPTO Classifications: 33/32.2 Tool Categories: layout tools : squares : try squares layout tools : marking gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: O. M. Shaw K. Dufree	Patent Dates: Applied: Jun. 20, 1892 Granted: Apr. 25, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: This is an improvement of patent 464074

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