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发明名称
Dispositif permettant de prélever des échantillons de sable, de liquide et/ou de gaz, en particulier dans les couches poreuses traversées par un sondage
摘要
申请公布号
FR807459(A)
申请公布日期
1937.01.13
申请号
FRD807459
申请日期
1936.06.23
申请人
SOCIETE DE PROSPECTION ELECTRIQUE
发明人
分类号
E21B49/04;E21B49/10
主分类号
E21B49/04
代理机构
代理人
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