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发明名称
摘要
申请公布号
JPS5340276(B2)
申请公布日期
1978.10.26
申请号
JP19740123353
申请日期
1974.10.28
申请人
发明人
分类号
H01J9/32;H01K3/10
主分类号
H01J9/32
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