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发明名称
摘要
申请公布号
JPS63123644(U)
申请公布日期
1988.08.11
申请号
JP19870015470U
申请日期
1987.02.06
申请人
发明人
分类号
G02B6/00;C03B37/027;C03B37/029;(IPC1-7):C03B37/027
主分类号
G02B6/00
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代理人
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