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发明名称
Fremgangsmåde til frembringelse af luftartbindende lag i udladningsrør.
摘要
申请公布号
DK71989(C)
申请公布日期
1951.01.08
申请号
DK19470004768
申请日期
1947.12.19
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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