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发明名称
DEVICE FOR TAKING ORIENTED CORE
摘要
申请公布号
SU1411432(A1)
申请公布日期
1988.07.23
申请号
SU19864152191
申请日期
1986.11.25
申请人
KAZAKHSKIJ NII MINERALNOGO SYRYA
发明人
OSHKORDIN OLEG V,SU;BOBYLEV FEOFAN A,SU;METSGER ALEKSANDR A,SU;SHEKHTMAN EDUARD N,SU
分类号
E21B25/16
主分类号
E21B25/16
代理机构
代理人
主权项
地址
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