Folding rule
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 3, 2016
Grant Date -
Feb 5, 2015
app pub date -
Mar 20, 2013
filing date -
Mar 30, 2012
priority date (Note) -
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Abstract
A folding rule including at least three links that are pivotably fastened to each other, at least one of the links has a scale for measuring the diameter of objects, the scale is designed in such a way that, when the object is completely enclosed by three adjacent links wherein the insides of the three links are each in contact with the object, a specified region of one of the links is in contact with the scale and a respective contact point on the scale indicates the diameter of the object.
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