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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • uring retroreflectivity of materialsUS621248025 Jan 20003 Apr 2001Laser Technology, Inc.Apparatus and method for determining precision reflectivity of highway signs and other reflective objects utilizing an optical range finder instrumentUS6240664 *2 Nov 19985 Jun 2001Airlite UnlimitedIlluminated sign and sign plate thereforUS6253477 *23 Sep 19983 Jul 2001Hallmark Technologies, Inc.Retro-reflectiv
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