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发明名称
Montage permettant l'appel sélectif d'un récepteur dans un réseau de télécommunication
摘要
申请公布号
FR974845(A)
申请公布日期
1951.02.26
申请号
FRD974845
申请日期
1948.11.12
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H04W88/02
主分类号
H04W88/02
代理机构
代理人
主权项
地址
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