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发明名称
Bronnapparat og fremgangsmate for fresing av et vindu og i det minste ett kilespor i en bronns foringsror
摘要
申请公布号
NO322914(B1)
申请公布日期
2006.12.18
申请号
NO20010002591
申请日期
2001.05.25
申请人
WEATHERFORD/LAMB INC
发明人
BRUNET CHARLES G
分类号
E21B7/08;E21B7/06;E21B29/06
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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