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经营范围
发明名称
REPLACEABLE ELECTRICAL DEVICE FOR DRILLING TOOL
摘要
申请公布号
CA2618944(A1)
申请公布日期
2003.10.09
申请号
CA20032618944
申请日期
2003.03.26
申请人
BAKER HUGHES INCORPORATED
发明人
DAS, PRALAY K.;MARZOUK, JOE
分类号
H01M2/10;E21B41/00;H02J7/00
主分类号
H01M2/10
代理机构
代理人
主权项
地址
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