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发明名称
IMPROVEMENTS RELATING TO THE MOUNTING OF MICROPHONES AND ULTRA-SONIC TRANSDUCER IN WET ENVIRONMENTS
摘要
申请公布号
GB8727893(D0)
申请公布日期
1987.12.31
申请号
GB19870027893
申请日期
1987.11.28
申请人
HEYES, A D
发明人
分类号
G10K9/22;H04R1/02;H04R1/08
主分类号
G10K9/22
代理机构
代理人
主权项
地址
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