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发明名称
ACOUSTIC SYSTEMS
摘要
申请公布号
GB8403509(D0)
申请公布日期
1984.03.14
申请号
GB19840003509
申请日期
1984.02.10
申请人
BARNETT, P W
发明人
分类号
G10K15/12
主分类号
G10K15/12
代理机构
代理人
主权项
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