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发明名称
METHOD OF WORKING GENTLY-SLOPING SEAMS OF MINERALS WITH ROOF-CAVING UNDER PROTECTED OBJECTS
摘要
申请公布号
SU1190038(A1)
申请公布日期
1985.11.07
申请号
SU19843726048
申请日期
1984.04.11
申请人
BRUSS VNI PI GALURGII
发明人
SOROKIN VIKTOR A,SU;PETROVSKIJ BORIS I,SU;KALINICHENKO PETR I,SU;NIKOLAEV YURIJ N,SU;STEPANOV KONSTANTIN A,SU;ZELENKIN VITALIJ N,SU;NEVELSON ILYA S,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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