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经营范围
发明名称
ELECTRON TUBE
摘要
申请公布号
KR100675464(B1)
申请公布日期
2007.01.26
申请号
KR20030092865
申请日期
2003.12.18
申请人
发明人
分类号
H01J1/18;H01J1/62;H01J1/88;H01J9/14;H01J29/02;H01J29/04;H01J29/46;H01J31/15;H01J63/04;H01J63/06
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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