Ball activated tool for use in downhole drilling,申请号GB20010016234-传众专利搜索

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发明名称	Ball activated tool for use in downhole drilling
摘要
申请公布号	GB0116234(D0)	申请公布日期	2001.08.29
申请号	GB20010016234	申请日期	2001.07.03
申请人	LEE, PAUL B	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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