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申请公布号
JPS5589251(U)
申请公布日期
1980.06.20
申请号
JP19780173230U
申请日期
1978.12.15
申请人
发明人
分类号
H01J29/04;H01J1/20;H01J1/88;H01J9/18;(IPC1-7):H01J1/88
主分类号
H01J29/04
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