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发明名称
Method of rectifying alignment errors in permanent way tracks
摘要
申请公布号
GB933590(A)
申请公布日期
1963.08.08
申请号
GB19600017979
申请日期
1960.05.20
申请人
FRANZ PLASSER
发明人
分类号
E01B33/00;E01B35/00
主分类号
E01B33/00
代理机构
代理人
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