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经营范围
发明名称
ROERSKJOET.
摘要
申请公布号
NO162041(B)
申请公布日期
1989.07.17
申请号
NO19830004890
申请日期
1983.12.30
申请人
MOBIL OIL CORPORATION
发明人
SALIGER, KENNETH CARL
分类号
F16L15/04;E21B17/043;F16L15/00;(IPC1-7):E21B17/043;F16L13/02
主分类号
F16L15/04
代理机构
代理人
主权项
地址
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