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经营范围
发明名称
ACOUSTIC TRANSDUCER
摘要
申请公布号
EP0140618(B1)
申请公布日期
1991.07.10
申请号
EP19840306956
申请日期
1984.10.11
申请人
THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND
发明人
LEWIS, MEIRION FRANCIS
分类号
H03H3/08;H03H9/02;H03H9/145
主分类号
H03H3/08
代理机构
代理人
主权项
地址
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