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经营范围
发明名称
OPTICAL PARTS AND OPTICAL HEAD USING THEREOF
摘要
申请公布号
JPH01315721(A)
申请公布日期
1989.12.20
申请号
JP19890049802
申请日期
1989.03.03
申请人
HITACHI LTD
发明人
OTSUKA YASUO;SASAKI TORU;KONUMA YOSHIHIRO;FUKUI YUKIO
分类号
G02B5/04;G02B27/28
主分类号
G02B5/04
代理机构
代理人
主权项
地址
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