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发明名称
Amplificateur à contre-réaction
摘要
申请公布号
FR845154(A)
申请公布日期
1939.08.14
申请号
FRD845154
申请日期
1938.10.24
申请人
SOCIETE INDUSTRIELLE DES PROCEDES LOTH
发明人
分类号
H03F3/28;H03F3/52
主分类号
H03F3/28
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