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发明名称
Improvements in or relating to telephone amplifying systems employing negative impedance converters
摘要
申请公布号
GB821521(A)
申请公布日期
1959.10.07
申请号
GB19550032981
申请日期
1955.11.17
申请人
HER MAJESTY'S POSTMASTER GENERAL
发明人
NEILL THOMAS BARFIELD MACKIE
分类号
H04B3/18
主分类号
H04B3/18
代理机构
代理人
主权项
地址
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Gedichtete Stiftverbindungsanordnung
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