FIELD: textile; paper.
SUBSTANCE: authentication mark is specific for this secured document, and element of authentication is intended to verify authentication marks of other documents from this row of secured documents of the same type. Nondestructive verification of authentication mark of protection system is executable only by means of pre-specified effect from combination with element of authentication in protection system arranged in other secured document of the same type.
EFFECT: high extent of counterfeit protection of documents, simplicity and reliability of their verification.
30 cl, 20 dwg
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|---|---|---|---|
| PROTECTIVE ELEMENT HAVING BASE | 2005 |
|
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|
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|
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|
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|
RU2647375C2 |
| METHOD FOR AUTHENTICATION AND/OR IDENTIFICATION OF PROTECTED ARTICLE | 2011 |
|
RU2586873C2 |
