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发明名称
摘要
申请公布号
JPS602584(Y2)
申请公布日期
1985.01.24
申请号
JP19770107535U
申请日期
1977.08.11
申请人
发明人
分类号
G03B19/18;G03B17/38;G03B17/46;(IPC1-7):G03B19/18
主分类号
G03B19/18
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代理人
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