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发明名称
摘要
申请公布号
JPS412105(Y1)
申请公布日期
1966.02.14
申请号
JP19640075070U
申请日期
1964.09.24
申请人
发明人
分类号
G09B19/10;(IPC1-7):G09B19/10
主分类号
G09B19/10
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