Retroreflective article
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United States of America Patent
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May 10, 2011
Grant Date -
Jun 25, 2009
app pub date -
Nov 30, 2006
filing date -
Nov 30, 2005
priority date (Note) -
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Abstract
A retroreflective article with excellent wide-angle characteristics is provided. Entrance angle characteristics, observation angle characteristics, and rotation angle characteristics are improved. In a retroreflective article, an assembly of multidirectional retroreflective elements is formed, in which either five, or seven or more unit elements are formed so as to share two common base edges forming the triangular base face of the unit elements and a common vertex at which the common base edges intersect, with an adjacent retroreflective element.
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