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经营范围
发明名称
OPTICAL HEAD
摘要
申请公布号
JPH03157841(A)
申请公布日期
1991.07.05
申请号
JP19890298103
申请日期
1989.11.15
申请人
SHARP CORP
发明人
NAKADA YASUO;YOSHIDA YOSHIO;SATO HIDEO;OGATA NOBUO;KAMIYAMA TETSUO;KURATA YUKIO
分类号
G11B11/10;G11B11/105
主分类号
G11B11/10
代理机构
代理人
主权项
地址
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