OPTICAL PICKUP DEVICE,申请号EP19890308520-传众专利搜索

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发明名称	OPTICAL PICKUP DEVICE
摘要
申请公布号	EP0357323(A3)	申请公布日期	1991.01.30
申请号	EP19890308520	申请日期	1989.08.23
申请人	SHARP KABUSHIKI KAISHA	发明人	YOKOTA, TAIZO
分类号	G11B7/09;G11B7/095;G11B7/13;G11B7/135;(IPC1-7):G11B7/095	主分类号	G11B7/09
代理机构		代理人
主权项
地址

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