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发明名称
摘要
申请公布号
JPS5229056(U)
申请公布日期
1977.03.01
申请号
JP19750115495U
申请日期
1975.08.20
申请人
发明人
分类号
H01J23/10;(IPC1-7):H01J23/10
主分类号
H01J23/10
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