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发明名称
Perfectionnements aux systèmes de transmission des signaux de fréquences vocales
摘要
申请公布号
FR1223178(A)
申请公布日期
1960.06.15
申请号
FR19590793847
申请日期
1959.05.04
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H04B1/66
主分类号
H04B1/66
代理机构
代理人
主权项
地址
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