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发明名称
摘要
申请公布号
JPS6019323(Y2)
申请公布日期
1985.06.11
申请号
JP19810005348U
申请日期
1981.01.20
申请人
发明人
分类号
H01J31/20;H01J29/07;(IPC1-7):H01J29/07
主分类号
H01J31/20
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