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经营范围
发明名称
Improvements relating to signal amplifiers
摘要
申请公布号
GB811753(A)
申请公布日期
1959.04.08
申请号
GB19560028104
申请日期
1956.09.14
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
EKSTROEM THORSTEN EINAR
分类号
H03G7/02
主分类号
H03G7/02
代理机构
代理人
主权项
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