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经营范围
发明名称
Cementing Head
摘要
申请公布号
GB2431952(B)
申请公布日期
2010.01.13
申请号
GB20070002873
申请日期
2005.07.26
申请人
BAKER HUGHES INCORPORATED
发明人
JOHN BAUGH;SIDNEY KENNETH SMITH JR;DAVID A ARCE
分类号
E21B33/05;E21B23/00;E21B33/068;E21B34/14;E21B43/10
主分类号
E21B33/05
代理机构
代理人
主权项
地址
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