Device and a method for disconnecting a tool from a pipe string,申请号US20040803351-传众专利搜索

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发明名称	Device and a method for disconnecting a tool from a pipe string
摘要
申请公布号	US2004216887(A1)	申请公布日期	2004.11.04
申请号	US20040803351	申请日期	2004.03.18
申请人	BERTELSEN OLAF	发明人	BERTELSEN OLAF
分类号	E21B17/06;E21B23/04;(IPC1-7):E21B17/06	主分类号	E21B17/06
代理机构		代理人
主权项
地址

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