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发明名称
OPTICAL PICKUP
摘要
申请公布号
JPH0349048(A)
申请公布日期
1991.03.01
申请号
JP19890184201
申请日期
1989.07.17
申请人
KONICA CORP
发明人
ISHIDA HIROSHI
分类号
G11B7/12
主分类号
G11B7/12
代理机构
代理人
主权项
地址
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