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US Patent: 460,421
Combined Protractor & Bevel
Patentee: George E. Allen (exact or similar names) - Hartford, CT USPTO Classifications: 33/470 Tool Categories: metalworking tools : machinist tools : measuring tools : protractors layout tools : protractors layout tools : squares : bevel squares Assignees: None Manufacturer: Not known to have been produced Witnesses: Ernst Schau Edward Eberle	Patent Dates: Applied: Apr. 03, 1891 Granted: Sep. 29, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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