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发明名称
Automatic volume control system responding to ambient noise
摘要
申请公布号
GB2237463(A)
申请公布日期
1991.05.01
申请号
GB19890023298
申请日期
1989.10.16
申请人
JOHN * MOFFATT
发明人
JOHN * MOFFATT
分类号
H03G3/32
主分类号
H03G3/32
代理机构
代理人
主权项
地址
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