Optical information recording medium provided with visual watermark, apparatus and method for making the visual watermark,申请号EP19990122208-传众专利搜索

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发明名称	Optical information recording medium provided with visual watermark, apparatus and method for making the visual watermark
摘要
申请公布号	EP1079381(A3)	申请公布日期	2001.05.30
申请号	EP19990122208	申请日期	1999.11.06
申请人	TOSHIBA-EMI LIMITED	发明人	HIROFUMI, IWAI
分类号	G11B7/24;G11B7/26;G11B23/28;G11B23/40;(IPC1-7):G11B7/26	主分类号	G11B7/24
代理机构		代理人
主权项
地址

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