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发明名称
Completion tool for oil wells
摘要
申请公布号
US3211228(A)
申请公布日期
1965.10.12
申请号
US19620239224
申请日期
1962.11.21
申请人
BRAMLETT OIL FIELD SERVICE, INC.
发明人
BRAMLETT MERLIN F.
分类号
E21B33/129
主分类号
E21B33/129
代理机构
代理人
主权项
地址
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