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发明名称
摘要
申请公布号
JPS57195111(U)
申请公布日期
1982.12.10
申请号
JP19810081569U
申请日期
1981.06.04
申请人
发明人
分类号
G02B7/10;H01B7/18;(IPC1-7):G02B7/10
主分类号
G02B7/10
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代理人
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