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经营范围
发明名称
AN ACOUSTIC TRANSDUCER
摘要
申请公布号
GB8912782(D0)
申请公布日期
1989.07.19
申请号
GB19890012782
申请日期
1989.06.02
申请人
UDI GROUP LIMITED
发明人
分类号
H04R1/38;B06B1/06;H04R17/00
主分类号
H04R1/38
代理机构
代理人
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地址
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