MAGNETIC RECORDING MEDIUM,申请号JP19890272199-传众专利搜索

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发明名称	MAGNETIC RECORDING MEDIUM
摘要
申请公布号	JPH03132915(A)	申请公布日期	1991.06.06
申请号	JP19890272199	申请日期	1989.10.18
申请人	RICOH CO LTD	发明人	WATADA ATSUYUKI
分类号	G11B11/10;G11B5/64;G11B5/65;G11B5/66;G11B5/738;G11B11/105	主分类号	G11B11/10
代理机构		代理人
主权项
地址

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