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发明名称
Echo sounder and other device for distance measuring in water
摘要
申请公布号
US2530035(A)
申请公布日期
1950.11.14
申请号
US19480002073
申请日期
1948.01.13
申请人
MARCONI SOUNDING DEVICE COMPANY LIMITED
发明人
WATT JAMES
分类号
G01S13/70;G01S15/18
主分类号
G01S13/70
代理机构
代理人
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地址
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