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发明名称
Variable gain control
摘要
申请公布号
GB9720036(D0)
申请公布日期
1997.11.19
申请号
GB19970020036
申请日期
1997.09.19
申请人
NEC CORPORATION
发明人
分类号
H03G3/20;H03G3/00;H03G3/30
主分类号
H03G3/20
代理机构
代理人
主权项
地址
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