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发明名称
Perfectionnements aux sondeurs électro-acoustiques
摘要
申请公布号
FR782871(A)
申请公布日期
1935.06.14
申请号
FRD782871
申请日期
1934.03.06
申请人
RAOUL, EDOUARD BADIN
发明人
JACQUET GAETAN, GILBERT
分类号
G01S7/534
主分类号
G01S7/534
代理机构
代理人
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