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经营范围
发明名称
Optical head apparatus.
摘要
申请公布号
EP0620550(A3)
申请公布日期
1995.05.10
申请号
EP19940105726
申请日期
1994.04.13
申请人
SONY CORP
发明人
HINENO SATOSHI;ANDO NOBUHIKO
分类号
G11B7/00;G11B7/135;G11B11/105;(IPC1-7):G11B11/10
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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