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发明名称
Perfectionnements aux dispositifs à charges creuses utilisables à l'intérieur des sondages
摘要
申请公布号
FR1238277(A)
申请公布日期
1960.08.12
申请号
FR19590795656
申请日期
1959.05.26
申请人
SOCIETE DE PROSPECTION ELECTRIQUE, PROCEDES SCHLUMBERGER
发明人
分类号
E21B43/117
主分类号
E21B43/117
代理机构
代理人
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地址
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