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发明名称
Optical pick-up head apparatus
摘要
申请公布号
EP0404438(B1)
申请公布日期
1996.08.21
申请号
EP19900306492
申请日期
1990.06.14
申请人
SONY CORPORATION
发明人
EGUCHI, NAOYA
分类号
G11B7/085;G11B7/09;G11B7/135;(IPC1-7):G11B7/135;G11B7/08
主分类号
G11B7/085
代理机构
代理人
主权项
地址
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