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申请公布号
JPS411785(Y1)
申请公布日期
1966.02.09
申请号
JP19640018951U
申请日期
1964.03.12
申请人
发明人
分类号
G09B9/052;G09B9/04;G09B9/05;(IPC1-7):G09B9/04
主分类号
G09B9/052
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