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发明名称
LIGHT PICKUP DEVICE
摘要
申请公布号
JPH0384743(A)
申请公布日期
1991.04.10
申请号
JP19890222171
申请日期
1989.08.28
申请人
SHARP CORP
发明人
MAEI SHIGEKI;YAMADA SHIGEHIRO
分类号
G11B7/12;G11B7/13
主分类号
G11B7/12
代理机构
代理人
主权项
地址
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