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发明名称
Flexible connection between cathode and plural section focusing electrode
摘要
申请公布号
US3135890(A)
申请公布日期
1964.06.02
申请号
US19610088115
申请日期
1961.02.09
申请人
EITEL-MCCULLOUGH, INC.
发明人
HEIL OSKAR
分类号
H01J3/02
主分类号
H01J3/02
代理机构
代理人
主权项
地址
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