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US Patent: 672,213
Angle Protractor
Patentee: Edwin L. Holcomb (exact or similar names) - Hartford, CT USPTO Classifications: 33/471, 33/534 Tool Categories: metalworking tools : machinist tools : measuring tools : protractors layout tools : protractors Assignees: None Manufacturer: Not known to have been produced Witnesses: H. Malner Jeannie Nellis W. H. Honiss	Patent Dates: Applied: Apr. 20, 1899 Granted: Apr. 16, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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