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发明名称
摘要
申请公布号
JPS5152257(Y2)
申请公布日期
1976.12.14
申请号
JP19710108043U
申请日期
1971.11.18
申请人
发明人
分类号
H01J29/76;(IPC1-7):H01J29/76
主分类号
H01J29/76
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代理人
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