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发明名称
摘要
申请公布号
JPH0177615(U)
申请公布日期
1989.05.25
申请号
JP19870173366U
申请日期
1987.11.13
申请人
发明人
分类号
G02B26/12;G02B5/08;G02B26/10;(IPC1-7):G02B26/10
主分类号
G02B26/12
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