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US Patent: 776,817
Protractor
Patentee: Frank E. Vandercook (exact or similar names) - Waterbury, CT USPTO Classifications: 33/425 Tool Categories: metalworking tools : machinist tools : measuring tools : protractors layout tools : protractors Assignees: Charles E. Spencer - Waterbury, CT Manufacturer: Not known to have been produced Witnesses: Florence H. Wick William O'Brian Theodore E. Rogers Jason Pepe	Patent Dates: Applied: Apr. 26, 1904 Granted: Dec. 06, 1904 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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