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发明名称
摘要
申请公布号
JPS626735(U)
申请公布日期
1987.01.16
申请号
JP19850096957U
申请日期
1985.06.26
申请人
发明人
分类号
G03B17/50;G03B27/50;(IPC1-7):G03B27/50
主分类号
G03B17/50
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