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发明名称
A METHOD FOR MAKING INSULATED CONTACTS IN RAILWAY TRACKS AND A DEVICE FOR APPLYING THIS METHOD
摘要
申请公布号
PL262226(A1)
申请公布日期
1988.09.01
申请号
PL19860262226
申请日期
1986.11.05
申请人
发明人
分类号
E01B;(IPC1-7):E01B/
主分类号
E01B
代理机构
代理人
主权项
地址
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