| http://www.w3.org/ns/prov#value | - Patent US6281165 - Therochromatic ink covered article having image disposed thereon and method ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA thermochromatic ink covered article including a substrate, a thermochromatic ink layer disposed on the substrate, a polymer acrylic protective coating over said thermochromatic ink layer, and
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