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发明名称
摘要
申请公布号
JPS59109326(U)
申请公布日期
1984.07.23
申请号
JP19830003617U
申请日期
1983.01.14
申请人
发明人
分类号
G03B17/12;G02B15/10;G03B17/56;(IPC1-7):G03B17/12
主分类号
G03B17/12
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代理人
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