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发明名称
RAILWAY POINTS
摘要
申请公布号
GB2051189(A)
申请公布日期
1981.01.14
申请号
GB19800011885
申请日期
1980.04.10
申请人
ELEKTRO-THERMIT GMBH
发明人
分类号
E01B7/14;(IPC1-7):E01B7/14
主分类号
E01B7/14
代理机构
代理人
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