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发明名称
摘要
申请公布号
JPH0162639(U)
申请公布日期
1989.04.21
申请号
JP19870155593U
申请日期
1987.10.13
申请人
发明人
分类号
H01J29/76;(IPC1-7):H01J29/76
主分类号
H01J29/76
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