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发明名称
OPTICAL HEAD
摘要
申请公布号
JPS6460829(A)
申请公布日期
1989.03.07
申请号
JP19870216479
申请日期
1987.09.01
申请人
HITACHI LTD
发明人
ONISHI KUNIKAZU;INOUE MASAYUKI
分类号
G11B7/135
主分类号
G11B7/135
代理机构
代理人
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地址
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