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发明名称
摘要
申请公布号
JPS45020649(B1)
申请公布日期
1970.07.14
申请号
JP19660078602
申请日期
1966.11.30
申请人
发明人
分类号
H01J17/00;H01J17/14;H01J17/26;H01T2/02
主分类号
H01J17/00
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