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发明名称
摘要
申请公布号
JPS53140363(U)
申请公布日期
1978.11.06
申请号
JP19770046181U
申请日期
1977.04.12
申请人
发明人
分类号
H01J29/02;H01J29/07;H04N9/29;(IPC1-7):H01J29/07
主分类号
H01J29/02
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代理人
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