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经营范围
发明名称
Improvements in or relating to sonar apparatus
摘要
申请公布号
GB2071322(A)
申请公布日期
1981.09.16
申请号
GB19810005276
申请日期
1981.02.19
申请人
PLESSEY CO LTD
发明人
分类号
G01S7/52;G10K11/00;G10K11/28;(IPC1-7):G01S7/52
主分类号
G01S7/52
代理机构
代理人
主权项
地址
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