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发明名称
Cathode assembly for electron gun
摘要
申请公布号
KR100759539(B1)
申请公布日期
2007.09.18
申请号
KR20010013894
申请日期
2001.03.17
申请人
发明人
分类号
H01J29/04
主分类号
H01J29/04
代理机构
代理人
主权项
地址
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