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An Entity of Type : prov:Entity, within Data Space : webisa.webdatacommons.org associated with source dataset(s)

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  • 20100260372METHOD AND APPARATUS TO MARK A DOCUMENT USING A COMBINATION BETWEEN GUILLOCHES AND WATERMARKING, METHOD AND APPARATUS TO READ PREVIOUS COMBINATION - Guilloches (preventing modification) and watermarking (preventing substitution) technologies are combined to protect a medium, such as a card or a passport.
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