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发明名称
Well swab
摘要
申请公布号
US3072071(A)
申请公布日期
1963.01.08
申请号
US19580780827
申请日期
1958.12.16
申请人
MISSION MANUFACTURING COMPANY
发明人
STROUD BUCK CARSON
分类号
E21B37/10
主分类号
E21B37/10
代理机构
代理人
主权项
地址
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