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发明名称
Device for producing a multi- channel signal from a stereo signal
摘要
申请公布号
GB2099664(A)
申请公布日期
1982.12.08
申请号
GB19810034182
申请日期
1981.11.12
申请人
HELKAMA PEKKO
发明人
分类号
H04S3/00;(IPC1-7):H04S3/00
主分类号
H04S3/00
代理机构
代理人
主权项
地址
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