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发明名称
Acoustic device
摘要
申请公布号
GB9915361(D0)
申请公布日期
1999.09.01
申请号
GB19990015361
申请日期
1999.07.02
申请人
NEW TRANSDUCERS LIMITED
发明人
分类号
H04R1/22;H04R1/24;H04R1/28;H04R7/04;H04R7/06;H04R7/26
主分类号
H04R1/22
代理机构
代理人
主权项
地址
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