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发明名称
Improvements in or relating to electric discharge tubes
摘要
申请公布号
GB309584(A)
申请公布日期
1930.04.17
申请号
GB19290009691
申请日期
1929.03.26
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H05B41/06
主分类号
H05B41/06
代理机构
代理人
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地址
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