SECURITY ELEMENTS IN COVERS OF SECURE ARTICLE BY ULTRASONIC WELDING
A secure article, preferably a multi-page article, comprising a front cover, a reverse cover, and at least one security element. The security element is provided on and/or in the front cover and/or the reverse cover. The security element is produced by ultrasonic welding. The security element compri...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A secure article, preferably a multi-page article, comprising a front cover, a reverse cover, and at least one security element. The security element is provided on and/or in the front cover and/or the reverse cover. The security element is produced by ultrasonic welding. The security element comprises or consists of an optically variable element. |
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