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发明名称
SEEK CIRCUIT OF OPTICAL DISK
摘要
申请公布号
EP0441969(A4)
申请公布日期
1992.04.01
申请号
EP19900912473
申请日期
1990.08.28
申请人
SONY CORPORATION
发明人
WACHI, SHIGEAKI SONY CORPORATION
分类号
G11B21/08;G11B7/085;(IPC1-7):G11B21/08
主分类号
G11B21/08
代理机构
代理人
主权项
地址
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