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经营范围
发明名称
Color display tube with reduced deflection defocussing
摘要
申请公布号
USRE33592(E)
申请公布日期
1991.05.21
申请号
US19890402001
申请日期
1989.08.31
申请人
发明人
分类号
H01J29/48;H01J29/50
主分类号
H01J29/48
代理机构
代理人
主权项
地址
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