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经营范围
发明名称
Improvements in or relating to electronic amplifiers
摘要
申请公布号
GB1155901(A)
申请公布日期
1969.06.25
申请号
GB19660029536
申请日期
1966.06.30
申请人
GEORGE A. PHILBRICK RESEARCHES INC.
发明人
分类号
H03F1/30;H03F7/04
主分类号
H03F1/30
代理机构
代理人
主权项
地址
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