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经营范围
发明名称
Improvements in or relating to gaseous electric discharge tubes and circuit arrangements therefor
摘要
申请公布号
GB734611(A)
申请公布日期
1955.08.03
申请号
GB19530000109
申请日期
1953.01.02
申请人
ERICSSON TELEPHONES LIMITED;JOHN REGINALD ACTON
发明人
分类号
H01J17/20
主分类号
H01J17/20
代理机构
代理人
主权项
地址
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