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发明名称
Einrichtung zur Untersuchung des Untergrundes mittels in ihm durch eine Erschuetterung, z. B. eine Explosion, erzeugter seismischer Wellen
摘要
申请公布号
DE751364(C)
申请公布日期
1952.09.04
申请号
DE1939C054766D
申请日期
1939.02.07
申请人
COMPAGNIE GENERALE DE GEOPHYSIQUE SOCIETE ANONYME
发明人
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主分类号
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