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发明名称
Casing packer cup
摘要
申请公布号
US2664952(A)
申请公布日期
1954.01.05
申请号
US19480014850
申请日期
1948.03.15
申请人
THE GUIBERSON CORPORATION
发明人
LOSEY THOMAS B.
分类号
E21B33/126
主分类号
E21B33/126
代理机构
代理人
主权项
地址
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