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发明名称
摘要
申请公布号
JPS63502942(A)
申请公布日期
1988.10.27
申请号
JP19870502061
申请日期
1987.02.27
申请人
发明人
分类号
H01J35/06;H01J35/12;H01J35/16;H01J35/24
主分类号
H01J35/06
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