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发明名称
NOISE-CANCELLING MICROPHONES
摘要
申请公布号
GB2176369(A)
申请公布日期
1986.12.17
申请号
GB19850011767
申请日期
1985.05.09
申请人
THE * PLESSEY COMPANY PLC
发明人
KEVIN MICHAEL MCKEOWN * ADAMS
分类号
H04R1/06;H04R17/02;(IPC1-7):H04R17/02
主分类号
H04R1/06
代理机构
代理人
主权项
地址
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