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发明名称
POLYPHONIC SOUND SYSTEM
摘要
申请公布号
GB1597580(A)
申请公布日期
1981.09.09
申请号
GB19760045818
申请日期
1976.11.03
申请人
GRIFFITHS R M
发明人
分类号
G10H3/12;G10H3/18;H04R5/027;H04S1/00;H04S5/00;H04S7/00;(IPC1-7):H04S1/00
主分类号
G10H3/12
代理机构
代理人
主权项
地址
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