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US Patent: 31,987
Machinist's Square
Patentee: Richard B. Light (exact or similar names) - Dunkirk, Chautauqua County, NY USPTO Classifications: 33/342, 33/369, 33/419 Tool Categories: layout tools : squares layout tools : protractors layout tools : scribes layout tools : levels : machinist levels Assignees: None Manufacturer: Not known to have been produced Witnesses: Hanson A. Risley Thomas Flesher	Patent Dates: Granted: Apr. 09, 1861 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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