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发明名称
摘要
申请公布号
JPH0673712(U)
申请公布日期
1994.10.18
申请号
JP19930013794U
申请日期
1993.03.24
申请人
发明人
分类号
G02B7/00;G02B7/198;G02B21/06;(IPC1-7):G02B7/00
主分类号
G02B7/00
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代理人
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