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发明名称
CORE BARREL
摘要
申请公布号
RU2049220(C1)
申请公布日期
1995.11.27
申请号
RU19920005964
申请日期
1992.11.11
申请人
AKTSIONERNOE OBSHCHESTVO ZAKRYTOGO TIPA "NAUCHNO-PROIZVODSTVENNAYA FIRMA "YUKON"
发明人
KHAJRULLIN BULAT YU;VITYAZEV OLEG L;RYBOLOVLEV VITALIJ P
分类号
E21B25/08;(IPC1-7):E21B25/08
主分类号
E21B25/08
代理机构
代理人
主权项
地址
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