Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chi-Minh Le0
Date of Patent
December 16, 2008
0Patent Application Number
119703830
Date Filed
January 7, 2008
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A ruler for drawing or measurement of circles, straight lines, and angles. The ruler body has a longitudinal slot in the middle and parallel with the length of the ruler. A sliding pen or pencil holder is placed within the slot for drawing or measuring. A compass is included in the combinations.
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