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经营范围
发明名称
Drilling fluids
摘要
申请公布号
US2369407(A)
申请公布日期
1945.02.13
申请号
US19440518117
申请日期
1944.01.13
申请人
THE TEXAS COMPANY
发明人
JR. WILLIAM W. ROBINSON,
分类号
C09K8/16
主分类号
C09K8/16
代理机构
代理人
主权项
地址
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