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发明名称
SONAR TRANSDUCERS
摘要
申请公布号
AU597051(B2)
申请公布日期
1990.05.24
申请号
AU19870071637
申请日期
1987.03.17
申请人
THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S G
发明人
DOUGLAS BRIAN ARNOLD;GEORGE BROMFIELD;JOHN CHRISTOPHER GARDNER
分类号
B06B1/06;G10K9/12;H04R1/44;H04R17/00;(IPC1-7):H04R1/44
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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