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发明名称
PROXIMITY INDICATING SONAR EQUIPMENT
摘要
申请公布号
GB1598405(A)
申请公布日期
1981.09.23
申请号
GB19780009188
申请日期
1978.03.08
申请人
NAT RES DEV CORP
发明人
分类号
G01S15/14;(IPC1-7):G01S15/62
主分类号
G01S15/14
代理机构
代理人
主权项
地址
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