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经营范围
发明名称
Improvements in or relating to electrical machines
摘要
申请公布号
EP0762606(A3)
申请公布日期
1997.11.05
申请号
EP19960306418
申请日期
1996.09.04
申请人
CAMCO DRILLING GROUP LIMITED
发明人
GILLETT, ANTHONY W.;MOTION, WILLIAM C.
分类号
E21B41/00;H02K5/128;(IPC1-7):H02K5/128
主分类号
E21B41/00
代理机构
代理人
主权项
地址
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