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发明名称
摘要
申请公布号
JPH04116816(U)
申请公布日期
1992.10.20
申请号
JP19910029102U
申请日期
1991.04.02
申请人
发明人
分类号
G02B6/32;G02B23/26;(IPC1-7):G02B23/26
主分类号
G02B6/32
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代理人
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