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发明名称
摘要
申请公布号
JPH019317(Y2)
申请公布日期
1989.03.14
申请号
JP19830124961U
申请日期
1983.08.10
申请人
发明人
分类号
H01J9/24;H01J61/30;(IPC1-7):H01J9/24
主分类号
H01J9/24
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