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发明名称
Schaltung zum Ausgleich der frequenzabhängigen Dämpfung von Fernsprechleitungen.
摘要
申请公布号
CH201775(A)
申请公布日期
1938.12.15
申请号
CHD201775
申请日期
1938.03.05
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GLOEILAMPENFABRIEKEN N. V. PHILIPS'
分类号
H04B3/14
主分类号
H04B3/14
代理机构
代理人
主权项
地址
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