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经营范围
发明名称
Improvements in or relating to transistor electric amplifiers
摘要
申请公布号
GB878471(A)
申请公布日期
1961.09.27
申请号
GB19580029897
申请日期
1958.09.18
申请人
GENERAL MOTORS CORPORATION
发明人
分类号
H03F1/30
主分类号
H03F1/30
代理机构
代理人
主权项
地址
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