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经营范围
发明名称
FEEDBACK AMPLIFIER
摘要
申请公布号
GB1588073(A)
申请公布日期
1981.04.15
申请号
GB19780004120
申请日期
1978.02.01
申请人
SONY CORP
发明人
分类号
H03F1/34;H03F1/48;H03F3/19;H04N9/68;(IPC1-7):H03F1/34
主分类号
H03F1/34
代理机构
代理人
主权项
地址
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