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经营范围
发明名称
Amplifiers having a controlled response curve
摘要
申请公布号
GB647770(A)
申请公布日期
1950.12.20
申请号
GB19470003984
申请日期
1947.02.11
申请人
SOCIETE FRANCAISE RADIO-ELECTRIQUE
发明人
分类号
H03G5/08;H03G5/20
主分类号
H03G5/08
代理机构
代理人
主权项
地址
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