Improved plug or lock for use in oil field tubular members and an operating system therefor,申请号GB19940004661-传众专利搜索

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发明名称	Improved plug or lock for use in oil field tubular members and an operating system therefor
摘要
申请公布号	GB9404661(D0)	申请公布日期	1994.04.27
申请号	GB19940004661	申请日期	1994.03.10
申请人	HALLIBURTON CO	发明人
分类号	E21B23/06;E21B33/12;E21B33/129;E21B41/00	主分类号	E21B23/06
代理机构		代理人
主权项
地址

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