| http://www.w3.org/ns/prov#value | - It would be advantageous if techniques were available to enable laser engraving to produce some or all of these features, especially gray scale and/or color images and photographs. [0096] In some instances, however, some parts of a multi-layered ID document structure, (for example, a structure that includes polyester or polycarbonate laminate on a core such as TESLIN) can be non-conducive to accep
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