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发明名称
A WELL-DRILLING PROCESS
摘要
申请公布号
GB2192217(A)
申请公布日期
1988.01.06
申请号
GB19870015204
申请日期
1987.06.29
申请人
* TOTAL COMPAGNIE FRANCAISE DES PETROLES
发明人
* DORLEANS ANDRE
分类号
E21B17/10;E21B21/08;E21B41/00;(IPC1-7):E21B21/00
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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