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发明名称
摘要
申请公布号
JPS4424910(Y1)
申请公布日期
1969.10.20
申请号
JP19660028824U
申请日期
1966.03.29
申请人
发明人
分类号
H01J31/00;H01J29/00;(IPC1-7):H01J29/00
主分类号
H01J31/00
代理机构
代理人
主权项
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