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经营范围
发明名称
Improvements in or relating to thermionic valve and transistorised amplifiers
摘要
申请公布号
GB868946(A)
申请公布日期
1961.05.25
申请号
GB19600007532
申请日期
1960.03.03
申请人
TESLA
发明人
分类号
H03F1/34;H03F1/36
主分类号
H03F1/34
代理机构
代理人
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