发明名称 Multilayered optically variable element
摘要 <p>In the case of a multilayered optically variable element, preferably a hologram, having an adhesive layer which is covered by an easily removable top layer and at least one layer which has the optically variable effect, the protective layer is designed as a self-supporting and dimensionally stable layer of a thickness of a few micrometres. <IMAGE></p>
申请公布号 EP0466118(B2) 申请公布日期 2001.04.25
申请号 EP19910111437 申请日期 1991.07.09
申请人 GAO GESELLSCHAFT FUER AUTOMATION 发明人 KAULE, WITTICH, DR.
分类号 G03F7/004;B32B27/08;B42D25/29;G03H1/02;(IPC1-7):G03H1/02;B32B33/00 主分类号 G03F7/004
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