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发明名称
DRILL PIPE THREAD LOCK
摘要
申请公布号
SU1733620(A1)
申请公布日期
1992.05.15
申请号
SU19904796175
申请日期
1990.02.27
申请人
KAMSKIJ NII KOMPLEKSNYKH ISSLEDOVANIJ GLUBOKIKH SVERKHGLUBOKIKH SKVAZHIN
发明人
KOZUBOVSKIJ IGOR A,SU
分类号
E21B17/043;F16B2/20
主分类号
E21B17/043
代理机构
代理人
主权项
地址
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