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发明名称
DRILLING MUD PREPARATION
摘要
申请公布号
CA366534(A)
申请公布日期
1937.06.01
申请号
CAD366534
申请日期
申请人
THE TEXACO DEVELOPMENT CORPORATION
发明人
WILLIAM WEBB ROBINSON, JR.
分类号
主分类号
代理机构
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