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经营范围
发明名称
AN OPTICAL PICKUP APPARATUS
摘要
申请公布号
EP0380320(A3)
申请公布日期
1991.06.26
申请号
EP19900300741
申请日期
1990.01.24
申请人
SHARP KABUSHIKI KAISHA
发明人
NISHITANI, YUKINORI;KURATA, YUKIO;YOSHIDA, YOSHIO;MIYAKE, TAKAHIRO
分类号
G02B5/18;G11B7/12;G11B7/135;(IPC1-7):G11B7/135;G11B7/09
主分类号
G02B5/18
代理机构
代理人
主权项
地址
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