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发明名称
KUEHLVORRICHTUNG FUER ELEKTRISCHE ENTLADUNGSROEHREN.
摘要
申请公布号
DE1713230(U)
申请公布日期
1955.12.15
申请号
DE195300N2968U
申请日期
1953.04.08
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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