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发明名称
摘要
申请公布号
JPS5745012(B2)
申请公布日期
1982.09.25
申请号
JP19740039393
申请日期
1974.04.09
申请人
发明人
分类号
H01J9/39;H01J7/18;H01J9/38
主分类号
H01J9/39
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代理人
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地址
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