DOWNHOLE STRING BYPASS APPARATUS,申请号SG19920001171-传众专利搜索

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发明名称	DOWNHOLE STRING BYPASS APPARATUS
摘要
申请公布号	SG117192(G)	申请公布日期	1993.01.29
申请号	SG19920001171	申请日期	1992.11.06
申请人	HALLIBURTON COMPANY	发明人
分类号	E21B33/124;(IPC1-7):E21B33/124	主分类号	E21B33/124
代理机构		代理人
主权项
地址

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