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发明名称
METHOD OF DUST CONTROL AND VENTILATION OF HEAD OF HEADING MACHINE WITH SHIELD
摘要
申请公布号
SU1640441(A1)
申请公布日期
1991.04.07
申请号
SU19884497799
申请日期
1988.10.24
申请人
LE GORNYJ I IM.G.V.PLEKHANOVA
发明人
SMETANIN MIKHAIL M,SU;OZERNOJ IGOR P,SU;GRIGOREV VALERIJ YU,SU;DEJNIS ANDREJ G,SU
分类号
E21F5/04;E21C35/22;E21F5/00
主分类号
E21F5/04
代理机构
代理人
主权项
地址
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