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发明名称
摘要
申请公布号
JPS5418121(Y2)
申请公布日期
1979.07.10
申请号
JP19730005363U
申请日期
1973.01.08
申请人
发明人
分类号
H01J1/36;H01J23/14;H01J23/54;H01J25/50;(IPC1-7):H01J23/14
主分类号
H01J1/36
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