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发明名称
摘要
申请公布号
JPS56126759(U)
申请公布日期
1981.09.26
申请号
JP19800024498U
申请日期
1980.02.27
申请人
发明人
分类号
H01J31/36;H01J29/86;H01J29/92;H01J31/38;(IPC1-7):H01J29/92
主分类号
H01J31/36
代理机构
代理人
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