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发明名称
METHOD FOR WORKING PILLARS IN ROOM-AND-PILLAR MINING SYSTEM
摘要
申请公布号
RU1828921(C)
申请公布日期
1993.07.23
申请号
SU19904811440
申请日期
1990.03.05
申请人
INSTITUT GORNOGO DELA AN KAZSSR
发明人
SHORMANOV ALIMKUL M;ALTAEV SHAUKAT A;MUKAEV TOLEUBAJ M;POMASHEV ONAL P;NURLYBAEV RYMBEK O;BEKBAEV SERIKBAJ M;KUSHTAEV ABIBULA ZH
分类号
E21C41/22
主分类号
E21C41/22
代理机构
代理人
主权项
地址
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