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经营范围
发明名称
Improvements in or relating to railway sleepers
摘要
申请公布号
GB598515(A)
申请公布日期
1948.02.19
申请号
GB19450029691
申请日期
1945.11.07
申请人
HENRY AUSTIN SAMUEL
发明人
分类号
E01B3/24
主分类号
E01B3/24
代理机构
代理人
主权项
地址
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