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发明名称
摘要
申请公布号
JPS565015(B2)
申请公布日期
1981.02.03
申请号
JP19720097462
申请日期
1972.09.28
申请人
发明人
分类号
H01J61/50;(IPC1-7):H01J61/50
主分类号
H01J61/50
代理机构
代理人
主权项
地址
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