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经营范围
发明名称
WATER-IN-OIL EMULSION DRILLING FLUID
摘要
申请公布号
CA569174(A)
申请公布日期
1959.01.20
申请号
CAD569174
申请日期
申请人
PAN AMERICAN PETROLEUM CORPORATION
发明人
JAMES L. LUMMUS
分类号
主分类号
代理机构
代理人
主权项
地址
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