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发明名称
摘要
申请公布号
JPS5741242(U)
申请公布日期
1982.03.05
申请号
JP19800117492U
申请日期
1980.08.21
申请人
发明人
分类号
H01J5/50;H01J5/60;H01K1/46;(IPC1-7):H01J5/60
主分类号
H01J5/50
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代理人
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