发明名称 Security document with window
摘要 Proposed is a value-bearing document in which the carrier is provided with a window-like opening which is closed by a cover foil which is transparent at least in a region-wise manner, wherein in particular in the region of the window-like opening the cover foil can be provided with additional security features, for example diffraction structures.
申请公布号 HK1001586(A1) 申请公布日期 1998.06.26
申请号 HK19980100467 申请日期 1998.01.20
申请人 LEONHARD KURZ GMBH & CO. 发明人 JURGEN HERRMANN;WERNER REINHART
分类号 B42D15/00;B42D25/29;B42D25/328;G02B5/18 主分类号 B42D15/00
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