ROTARY RECORDING DISK DEVICE,申请号JP19900011225-传众专利搜索

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发明名称	ROTARY RECORDING DISK DEVICE
摘要
申请公布号	JPH03216874(A)	申请公布日期	1991.09.24
申请号	JP19900011225	申请日期	1990.01.20
申请人	RICOH CO LTD	发明人	KAMATA HIROSHI
分类号	G11B21/10	主分类号	G11B21/10
代理机构		代理人
主权项
地址

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