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发明名称
摘要
申请公布号
JPS644082(Y2)
申请公布日期
1989.02.02
申请号
JP19830103421U
申请日期
1983.07.05
申请人
发明人
分类号
G02B7/04;(IPC1-7):G02B7/04
主分类号
G02B7/04
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