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发明名称
DOWNHOLE MOTOR FOR DRIVING A TOOL
摘要
申请公布号
GB1482574(A)
申请公布日期
1977.08.10
申请号
GB19740038529
申请日期
1974.09.03
申请人
TIRASPOLSKY W;ROUVIERE R
发明人
分类号
E21B4/02;F01C1/10;(IPC1-7):E21B3/12;E21B9/20;F04C1/06
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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