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发明名称
ACOUSTIC TRANSDUCER
摘要
申请公布号
GB8614940(D0)
申请公布日期
1986.10.29
申请号
GB19860014940
申请日期
1986.06.19
申请人
PLESSEY CO PLC
发明人
分类号
B06B1/06;H04R17/00;(IPC1-7):H04R17/00
主分类号
B06B1/06
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