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发明名称
摘要
申请公布号
JPS536162(U)
申请公布日期
1978.01.19
申请号
JP19760087032U
申请日期
1976.07.01
申请人
发明人
分类号
H01J29/54;H01J29/82;H01J29/86;(IPC1-7):H01J29/86
主分类号
H01J29/54
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