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经营范围
发明名称
Elektrisk udladningsrør med zirkoniumgetter.
摘要
申请公布号
DK77545(C)
申请公布日期
1954.05.17
申请号
DK19520000409
申请日期
1952.02.05
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
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