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经营范围
发明名称
Improvements in or relating to D.C. Amplifiers.
摘要
申请公布号
GB1152702(A)
申请公布日期
1969.05.21
申请号
GB19650025195
申请日期
1965.06.15
申请人
FIELDEN ELECTRONICS LIMITED
发明人
GRAHAM MOLYNEUX STOPFORD
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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