HIGH-DENSITY INFORMATION RECORDING MEDIUM,申请号JP19900233834-传众专利搜索

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发明名称	HIGH-DENSITY INFORMATION RECORDING MEDIUM
摘要
申请公布号	JPH0478021(A)	申请公布日期	1992.03.12
申请号	JP19900233834	申请日期	1990.09.04
申请人	RICOH CO LTD	发明人	TACHIKI MASAAKI
分类号	G11B20/12;G11B7/007	主分类号	G11B20/12
代理机构		代理人
主权项
地址

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