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发明名称
摘要
申请公布号
JPS49101661(U)
申请公布日期
1974.09.02
申请号
JP19720146642U
申请日期
1972.12.22
申请人
发明人
分类号
H01J7/24;(IPC1-7):H01J7/24
主分类号
H01J7/24
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代理人
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地址
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