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发明名称
OPTICAL PICKUP DEVICE
摘要
申请公布号
JPH03157843(A)
申请公布日期
1991.07.05
申请号
JP19890298615
申请日期
1989.11.16
申请人
发明人
分类号
G11B11/10;G11B7/005;G11B7/135;G11B11/105
主分类号
G11B11/10
代理机构
代理人
主权项
地址
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