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发明名称
Magnetically controlled electric discharge tubes
摘要
申请公布号
GB675490(A)
申请公布日期
1952.07.09
申请号
GB19490019021
申请日期
1949.07.19
申请人
TELEFONAKTIEBOLAGET L.M. ERICSSON
发明人
分类号
H01J21/18;H01J31/06
主分类号
H01J21/18
代理机构
代理人
主权项
地址
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