| http://www.w3.org/ns/prov#value | - In the practice of the present invention, it is preferred to utilize in reflectors of this invention wide angle retroreflective units in rows as herein detailed for the primary reason that, in a given row, such as in row 62, one side thereof, such as side 82 of row 62, can be readily prepared so as to have incorporated thereinto no quarter faces, half faces or other fractional faces as a unit, suc
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