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发明名称
DEVICE FOR CUTTING OUT BALLAST OF RAILWAY TRACK
摘要
申请公布号
SU1576609(A1)
申请公布日期
1990.07.07
申请号
SU19884442990
申请日期
1988.05.05
申请人
NOVOSIBIRSKIJ I INZHENEROV ZHELEZNODOROZHNOGO TRANSPORTA
发明人
POLYAKOV EVGENIJ I,SU
分类号
E01B27/04
主分类号
E01B27/04
代理机构
代理人
主权项
地址
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