FIELD: printing.
SUBSTANCE: invention also relates to a valuable document, translated materials and methods of manufacture of such protective elements and other valuable documents, as well as to the method and device for verification of such a protective element, respectively, a valuable document. A valuable document contains a security element, equipped with at least two magnetic materials with different amount of coercitive force, but with basically the same remanent magnetic induction.
EFFECT: high degree of protection against forgery, with the simplicity of manufacturing.
20 cl, 8 dwg
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