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发明名称
A method of and means for fastening down rails
摘要
申请公布号
GB331105(A)
申请公布日期
1930.06.26
申请号
GB19290020305
申请日期
1929.07.02
申请人
MAX RUEPING
发明人
分类号
E01B9/48
主分类号
E01B9/48
代理机构
代理人
主权项
地址
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