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发明名称
摘要
申请公布号
JPS6440147(U)
申请公布日期
1989.03.09
申请号
JP19870136656U
申请日期
1987.09.07
申请人
发明人
分类号
H01J9/44;H04N17/04;(IPC1-7):H01J9/44
主分类号
H01J9/44
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