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发明名称
COAL PLOUGH
摘要
申请公布号
SU1569407(A1)
申请公布日期
1990.06.07
申请号
SU19884459459
申请日期
1988.07.12
申请人
SHAKHTINSKI NI PK UGOLNY INST
发明人
BONDARENKO OLEG A,SU;BYKADOROV VALERIJ M,SU;GOLOD ARKADIJ B,SU;GAVRILYUK SERGEJ V,SU;BORTSOV ALEKSANDR V,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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