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legitimationskort at illumination and verifiable analysis ekthetstecken and still for framstellning of the same
legitimationskort at illumination and verifiable analysis ekthetstecken and still for framstellning of the same
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机译:在照明和可验证的分析中合法化
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摘要
A hallmark for example for a solid plastic identification card consisting of a plurality of layers is described. The hallmark is formed by means of only partially overlapping color coatings on a monochromatic or monochromatically printed substrate foil. More plastic foils are laminated onto the substrate foil, if desired. Single-layer printed portions of the surface appear bright in transmitted light and dark in incident light; multi-layer printed portions of the surface appear dark in transmitted light and bright in incident light, thus producing a watermark-like effect.
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