OPTICAL PICKUP DEVICE,申请号JP19910234620-传众专利搜索

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发明名称	OPTICAL PICKUP DEVICE
摘要
申请公布号	JPH0573945(A)	申请公布日期	1993.03.26
申请号	JP19910234620	申请日期	1991.09.13
申请人	RICOH CO LTD	发明人	SAKUYAMA HIROYUKI
分类号	G11B7/095	主分类号	G11B7/095
代理机构		代理人
主权项
地址

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