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发明名称
Improvements in and relating to railroad ties or sleepers
摘要
申请公布号
GB706587(A)
申请公布日期
1954.03.31
申请号
GB19510028830
申请日期
1951.12.10
申请人
EUGEN SCHULZ;ULRICH FINSTERWALDER
发明人
分类号
E01B3/34
主分类号
E01B3/34
代理机构
代理人
主权项
地址
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