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发明名称
Objective lens for optical disk system and optical head using the same
摘要
申请公布号
US4927247(A)
申请公布日期
1990.05.22
申请号
US19890343256
申请日期
1989.04.26
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人
TANAKA, YASUHIRO;SUNOHARA, MASAAKI;NAKAJIMA, YASUO;TANAKA, SHINICHI
分类号
G01B13/24;G02B13/00;G02B13/10;G02B13/24;G11B7/135
主分类号
G01B13/24
代理机构
代理人
主权项
地址
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