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US Patent: 1,207,980
Adjustable Triangle or Square and Protractor
Patentee: John Nash (exact or similar names) - Seattle, WA USPTO Classifications: 33/27.03, 33/426 Tool Categories: layout tools : bevels layout tools : squares layout tools : protractors Assignees: None Manufacturer: Not known to have been produced Witnesses: Andrew Nelson Elmer Maxey J. R. Sealey R. L. Parker	Patent Dates: Applied: Nov. 11, 1915 Granted: Dec. 12, 1916 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This square is hinged at the corner and provided with a protractor arc to allow it to be used for measuring or marking angles.

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