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发明名称
TRACK SWITCH POINT
摘要
申请公布号
SU1351985(A1)
申请公布日期
1987.11.15
申请号
SU19853887159
申请日期
1985.02.22
申请人
ZHDANOVSKIJ METALL INSTITUT
发明人
ZHILIN GENNADIJ K,SU
分类号
E01B7/00
主分类号
E01B7/00
代理机构
代理人
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