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<http://webisa.webdatacommons.org/205967293>	<http://www.w3.org/ns/prov#value>	"pparatus, information extracting apparatus, and recording mediaUS2002000920913 Jun 200124 Jan 2002Hisashi InoueDigital information embedding/extracting apparatus and method, and medium including a program for executing the method recorded thereonUS2002001691629 Sep 19977 Feb 2002Hewlett-Packard CompanyWatermarking of digital objectUS2002002180831 May 200121 Feb 2002Keiichi IwamuraImage processing" .
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