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发明名称
ELECTROC-ACCOUSTIC TRANSDUCERS
摘要
申请公布号
GB2160388(B)
申请公布日期
1988.02.03
申请号
GB19840015062
申请日期
1984.06.13
申请人
THE * PLESSEY COMPANY PLC
发明人
GEOFFREY MICHAEL * GARNER
分类号
H04R17/00;(IPC1-7):H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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