Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Marion Johnson0
Date of Patent
March 13, 2007
0Patent Application Number
110520130
Date Filed
February 4, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A multi-task protractor apparatus having the capabilities of a rotating protractor, adjustable triangle, ruler, miniature leveler, framing square and roof angle finder is disclosed. The multi-task protractor accurately measures angles and slopes and provides two straight edges for constructing angles and triangles.
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