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发明名称
Convertible well packer
摘要
申请公布号
US3002563(A)
申请公布日期
1961.10.03
申请号
US19590799576
申请日期
1959.03.16
申请人
BAKER OIL TOOLS, INC.
发明人
CROWE TALMADGE L.
分类号
E21B33/12;E21B33/129
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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