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发明名称
摘要
申请公布号
JPS567905(U)
申请公布日期
1981.01.23
申请号
JP19790087607U
申请日期
1979.06.28
申请人
发明人
分类号
G02B6/00;G02B5/00;G02B26/02;(IPC1-7):G02B5/14
主分类号
G02B6/00
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代理人
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