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发明名称
METHOD AND APPARATUS FOR AVERAGING LOOSE MATERIALS
摘要
申请公布号
SU1463917(A1)
申请公布日期
1989.03.07
申请号
SU19874235811
申请日期
1987.01.30
申请人
KUZBASSKIJ POLT INSTITUT
发明人
PROTASOV SERGEJ I,SU;DYACHENKO KONSTANTIN 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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