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经营范围
发明名称
Improvements in or relating to electric cathode glow discharge tubes having cold electrodes and a gaseous filling
摘要
申请公布号
GB366861(A)
申请公布日期
1932.02.11
申请号
GB19310018737
申请日期
1931.06.29
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J17/40
主分类号
H01J17/40
代理机构
代理人
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