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发明名称
Dispositif pour la mise à feu sélective de charges explosives destinées à la perforation des sondages
摘要
申请公布号
FR1426487(A)
申请公布日期
1966.01.28
申请号
FR19650005720
申请日期
1965.02.16
申请人
SCHLUMBERGER WELL SURVEYING CORPORATION
发明人
分类号
E21B43/1185;F42D1/05
主分类号
E21B43/1185
代理机构
代理人
主权项
地址
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