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发明名称
Perfectionnements aux appareils de sondage par écho
摘要
申请公布号
FR1181666(A)
申请公布日期
1959.06.17
申请号
FRD1181666
申请日期
1957.08.26
申请人
SIMONSEN RADIO A/S
发明人
分类号
G01S1/02;G10K11/35
主分类号
G01S1/02
代理机构
代理人
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