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经营范围
发明名称
BORKRONE.
摘要
申请公布号
NO880082(D0)
申请公布日期
1988.01.11
申请号
NO19880000082
申请日期
1988.01.11
申请人
INSTITUT FRANCAIS DU PETROLE
发明人
CHOLET, HENRI;BARDIN, CHRISTIAN
分类号
E21B;E21B10/18;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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