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发明名称
SPOT POSITION ERROR DETECTOR FOR OPTICAL PICKUP
摘要
申请公布号
JPH02165429(A)
申请公布日期
1990.06.26
申请号
JP19880319890
申请日期
1988.12.19
申请人
NEC CORP
发明人
TSUBOI MIGAKU
分类号
G11B7/09
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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