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发明名称
摘要
申请公布号
JPH0459053(U)
申请公布日期
1992.05.20
申请号
JP19900100869U
申请日期
1990.09.28
申请人
发明人
分类号
H01J5/50;H01J61/86;(IPC1-7):H01J61/86
主分类号
H01J5/50
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代理人
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地址
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