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发明名称
OPTICAL HEAD
摘要
申请公布号
JPH01263950(A)
申请公布日期
1989.10.20
申请号
JP19880089047
申请日期
1988.04.13
申请人
HITACHI LTD
发明人
HARA FUMIO;NAKAMURA SHIGERU;MITA SEIICHI;IZUMIDA MORIJI;TSUCHINAGA HIROYUKI
分类号
G11B7/09
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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