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发明名称
NON-UNLOADING AIR-BLADDER TYPE COAL-WINNING UNIT
摘要
申请公布号
SU1303713(A1)
申请公布日期
1987.04.15
申请号
SU19863974726
申请日期
1986.11.01
申请人
UNIV DRUZHBY NARODOV IM.PATRISA LUMUMBY
发明人
MASHKOVTSEV IGOR L,SU;MASHKOVTSEV BORIS I,SU;TRIFONOV ALEKSEJ S,SU;ULYANOV SERGEJ A,SU;NVANA SAMA B,SU
分类号
E21C27/32
主分类号
E21C27/32
代理机构
代理人
主权项
地址
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