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发明名称
Well packer
摘要
申请公布号
US3229767(A)
申请公布日期
1966.01.18
申请号
US19620248424
申请日期
1962.12.31
申请人
BAKER OIL TOOLS, INC.
发明人
CARTER THOMAS J.
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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