IDENTIFICATION MEDIUM AND METHOD FOR IDENTIFYING IDENTIFICATION MEDIUM
A discrimination medium on which printing can be freely performed, which cannot be easily falsified, in which the authenticity can be easily discriminated by unique appearance, and which can be produced at low cost, is provided. A cholesteric liquid crystal layer 10 or a multilayer film 5, and a bre...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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