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publicationDate 1997-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber EP-0789480-A2
titleOfInvention Copy restrictive system
abstract A system for restricting the copying of a document comprising:n means for embedding one or more microdots into a document; and detecting means for detecting the presence of one or more microdots in said document; and controlling means responsive to said detecting means for inhibiting a copy machine from copying the document when a microdot is detected.
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Total number of triples: 70.