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发明名称
Sondeurs par écho et moyens d'affichage des informations
摘要
申请公布号
FR1316270(A)
申请公布日期
1963.01.25
申请号
FR19620889339
申请日期
1962.02.27
申请人
THE MARCONI SOUNDING DEVICE COMPANY LIMITED
发明人
分类号
G01S7/62;G01S15/89
主分类号
G01S7/62
代理机构
代理人
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