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经营范围
发明名称
Dispositif renforcateur de radiogrammes
摘要
申请公布号
FR1061725(A)
申请公布日期
1954.04.14
申请号
FRD1061725
申请日期
1952.01.15
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
G21K4/00;H01J29/38;H01J31/50
主分类号
G21K4/00
代理机构
代理人
主权项
地址
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