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发明名称
Perfectionnements apportés aux amplificateurs à réaction négative
摘要
申请公布号
FR857140(A)
申请公布日期
1940.08.26
申请号
FRD857140
申请日期
1939.06.30
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
分类号
H03G3/08
主分类号
H03G3/08
代理机构
代理人
主权项
地址
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