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发明名称
摘要
申请公布号
JPS6299062(U)
申请公布日期
1987.06.24
申请号
JP19850191890U
申请日期
1985.12.13
申请人
发明人
分类号
G02B7/182;G02B7/18;G03B27/70;(IPC1-7):G03B27/70
主分类号
G02B7/182
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代理人
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