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发明名称
METHOD FOR EXERTING HYDRAULIC ACTION UPON A COAL SEAM
摘要
申请公布号
SU1643737(A1)
申请公布日期
1991.04.23
申请号
SU19894684815
申请日期
1989.02.21
申请人
DO POLT INSTITUT
发明人
ARTAMONOV VLADIMIR N,SU;YAREMBASH IGOR F,SU;YAREMBASH ALEKSANDR I,SU;STUKALO VITALIJ A,SU;ANDRUSHKO VASILIJ F,SU
分类号
E21F5/02
主分类号
E21F5/02
代理机构
代理人
主权项
地址
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