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发明名称
GAS AND CORE SAMPLER
摘要
申请公布号
SU1663178(A1)
申请公布日期
1991.07.15
申请号
SU19894680136
申请日期
1989.04.18
申请人
TEMATICHESKAYA EKSPEDITSIYA PROIZVODSTVENNOGO OBEDINENIYA "UKRUGLEGEOLOGIYA"
发明人
KRYSIN GERMAN S,SU
分类号
E21B25/00;E21B49/08
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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