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发明名称
Core barrel
摘要
申请公布号
US2032423(A)
申请公布日期
1936.03.03
申请号
US19350007023
申请日期
1935.02.18
申请人
LARSON LEWIS A;ARTHUR SOLL
发明人
LARSON LEWIS A.;SOLL ARTHUR
分类号
E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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