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经营范围
发明名称
CORE BARREL
摘要
申请公布号
SU1665020(A2)
申请公布日期
1991.07.23
申请号
SU19894682880
申请日期
1989.04.24
申请人
GNI PI NEFTYANOJ PROMYSHLENNOSTI
发明人
DUBLENICH YURIJ V,SU;KUNTSYAK YAROSLAV V,SU;GAVRILOV YAROSLAV S,SU;MESSER ALEKSEJ G,SU
分类号
E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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