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发明名称
DEVICE FOR CLEANING SWITCH POINT FROM SNOW
摘要
申请公布号
SU894027(A1)
申请公布日期
1981.12.30
申请号
SU19792832059
申请日期
1979.10.19
申请人
VNII ZHELEZNODOROZHNOGO TRANSPORTA
发明人
PIRIN VLADIMIR I,SU;SAMOKHIN SERGEJ A,SU
分类号
E01B19/00;E01H8/10;(IPC1-7):E01B19/00
主分类号
E01B19/00
代理机构
代理人
主权项
地址
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