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申请公布号
JPS5529109(Y2)
申请公布日期
1980.07.11
申请号
JP19780170973U
申请日期
1978.12.14
申请人
发明人
分类号
G04B11/00;G04B13/02;G04B27/00;G04F7/06;G04F7/08;(IPC1-7):G04B11/00
主分类号
G04B11/00
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