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经营范围
发明名称
METHOD OF AVERAGING LOOSE MATERIALS
摘要
申请公布号
SU1390357(A1)
申请公布日期
1988.04.23
申请号
SU19864123577
申请日期
1986.09.23
申请人
INST GORNOGO DELA AN KAZAKHSK
发明人
BUKTUKOV NIKOLAJ S,SU
分类号
E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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