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发明名称
摘要
申请公布号
JP2577485(Y2)
申请公布日期
1998.07.30
申请号
JP19910107279U
申请日期
1991.12.26
申请人
发明人
分类号
H01J1/28;H01J1/20;(IPC1-7):H01J1/28
主分类号
H01J1/28
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