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发明名称
摘要
申请公布号
JPS5418091(Y2)
申请公布日期
1979.07.10
申请号
JP19740028418U
申请日期
1974.03.12
申请人
发明人
分类号
H01J29/64;H01J29/46;H01J29/76;(IPC1-7):H01J29/46
主分类号
H01J29/64
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