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经营范围
发明名称
Well sampling device
摘要
申请公布号
US2870844(A)
申请公布日期
1959.01.27
申请号
US19550522908
申请日期
1955.07.19
申请人
SUN OIL COMPANY
发明人
BARNES WILLIAM E.
分类号
E21B49/08
主分类号
E21B49/08
代理机构
代理人
主权项
地址
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