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发明名称
OPTICAL PICKUP DEVICE
摘要
申请公布号
JPH04168631(A)
申请公布日期
1992.06.16
申请号
JP19900295021
申请日期
1990.10.31
申请人
MITSUBISHI ELECTRIC CORP
发明人
HONMA OSAMU
分类号
G02B7/28;G11B7/09
主分类号
G02B7/28
代理机构
代理人
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