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发明名称
Anordning for boring av forgreningsbrönner
摘要
申请公布号
NO177762(C)
申请公布日期
1995.11.15
申请号
NO19870001788
申请日期
1987.04.29
申请人
SOCIETE NATIONALE ELF AQUITAINE, SA
发明人
PARANT, JEAN-PIERRE;MARIOTTI, CHRISTIAN;ROUSSELET, PATRICK
分类号
E21B7/06;E21B7/08;E21B17/00;E21B17/07;E21B41/00;(IPC1-7):E21B7/08
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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