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发明名称
摘要
申请公布号
JPH0435849(Y2)
申请公布日期
1992.08.25
申请号
JP19840019318U
申请日期
1984.02.14
申请人
发明人
分类号
G02B23/18;(IPC1-7):G02B23/18
主分类号
G02B23/18
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代理人
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