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US Patent: 285,907
Protractor
Patentee: Patrick Kennelly (exact or similar names) - Bridgeport, CT USPTO Classifications: 33/1N, 33/1R Tool Categories: metalworking tools : machinist tools : measuring tools : protractors layout tools : protractors Assignees: None Manufacturer: Massachusetts Tool Co. - Greenfield, CT Witnesses: P. Kane M. S. Sheridan	Patent Dates: Applied: Feb. 20, 1883 Granted: Oct. 02, 1883 Patent Pictures: [ 1 | 2 | 3 | 4 | 5 | 6 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: The tool is used with a bevel square to determine and set angles.

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