发明名称 A SYSTEM FOR READING AND AUTHENTICATING A COMPOSITE IMAGE IN A SHEETING
摘要 <p>A system for reading and authenticating a composite image in a sheeting. A exemplary embodiment of the invention provides a system for reading and authenticating a sheeting including a composite image that appears to the unaided eye to be floating above or below the sheeting or both. The present invention also relates to methods of reading and authenticating a composite image that appears to the unaided eye to be floating above or below the sheeting or both.</p>
申请公布号 WO2006060090(A1) 申请公布日期 2006.06.08
申请号 WO2005US38758 申请日期 2005.10.27
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 KENNER, MARTIN, A.
分类号 G07D7/12 主分类号 G07D7/12
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