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发明名称
SYSTEM OF AUTOMATIC SECTION-WISE WATERING OF LONGWALL
摘要
申请公布号
SU669051(A1)
申请公布日期
1979.06.25
申请号
SU19772540454
申请日期
1977.10.28
申请人
N-PROIZV OB "AVTOMATGORMASH" MINISTERSTVA UGOLNOJ PROMY SSSR
发明人
GOLUBCHIKOV ALEKSANDR M,SU;KIBRIK ISAAK S,SU;SHAPOSHNIK VASILIJ ,SU;BYKOVSKIJ ALEKSANDR P,SU;EVERT ALEKSANDR V,SU
分类号
E21C27/18;(IPC1-7):E21C27/18
主分类号
E21C27/18
代理机构
代理人
主权项
地址
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