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发明名称
METHOD OF ERECTING A MAN-MADE INTERLEVEL PILLAR
摘要
申请公布号
SU937722(A1)
申请公布日期
1982.06.23
申请号
SU19802964228
申请日期
1980.07.18
申请人
VNI PK UGOLNYJ INSTITUT
发明人
TOMASHEVSKIJ LYUDVIG P,SU;KRYLOV VLADIMIR F,SU
分类号
(IPC1-7):E21C41/04
主分类号
(IPC1-7):E21C41/04
代理机构
代理人
主权项
地址
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