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发明名称
DEVICE FOR BREAKING OFF A CORE
摘要
申请公布号
SU1521855(A1)
申请公布日期
1989.11.15
申请号
SU19884384446
申请日期
1988.01.22
申请人
VNI PK I GEOFIZICHESKIKH ISSLEDOVANIJ GEOLOGORAZVEDOCHNYKH SKVAZHIN
发明人
PLATONOV VIKTOR V,SU
分类号
E21B25/10;G01N1/02
主分类号
E21B25/10
代理机构
代理人
主权项
地址
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