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发明名称
摘要
申请公布号
JPH0162518(U)
申请公布日期
1989.04.21
申请号
JP19880079531U
申请日期
1988.06.17
申请人
发明人
分类号
G02B6/44;(IPC1-7):G02B6/44
主分类号
G02B6/44
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