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发明名称
SIDE-TRACKING MILLS
摘要
申请公布号
US5199513(A)
申请公布日期
1993.04.06
申请号
US19910654086
申请日期
1991.02.11
申请人
TRI-STATE OIL TOOL (UK)
发明人
STEWART, DAVID;HILLIARD, PAUL;DOIG, THOMAS
分类号
E21B29/06
主分类号
E21B29/06
代理机构
代理人
主权项
地址
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