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发明名称
COAL-WINNING SET
摘要
申请公布号
SU877053(A1)
申请公布日期
1981.10.30
申请号
SU19772529987
申请日期
1977.10.04
申请人
INST GEOTEKHNICHESKOJ MEKHANIKI AN USSR
发明人
POTURAEV VALENTIN N,SU;CHERVONENKO ALFRED G,SU;STEPANYUK ANATOLIJ I,SU;GURIN IVAN A,SU;KHARCHENKO NIKOLAJ N,SU;AGAPOV NIKOLAJ D,SU;SUSHCHENKO ALEKSANDR I,SU
分类号
E21D23/00;E21C27/32;(IPC1-7):E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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