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发明名称
A motor bearing having equalised axial loads
摘要
申请公布号
GB2459573(A)
申请公布日期
2009.11.04
申请号
GB20090007511
申请日期
2009.04.30
申请人
SMITH INTERNATIONAL, INC.
发明人
JAMES EDMOND BEYLOTTE;JEFFREY N DODGE;TARAL PATEL
分类号
E21B4/02;F03B13/02
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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