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发明名称
KNUCKLE JOINT
摘要
申请公布号
RU2055974(C1)
申请公布日期
1996.03.10
申请号
RU19930009722
申请日期
1993.02.04
申请人
NAUCHNO-PROIZVODSTVENNAYA KOMPANIYA "TEKHNIKA I ORGANIZATSIYA BURENIYA SKVAZHIN"
发明人
SHENGUR NIKOLAJ V;POTASHNIKOV VLADIMIR D
分类号
E21B7/08;(IPC1-7):E21B7/08
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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