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经营范围
发明名称
Rail fixing means facilitating the laying of the rails in long bars
摘要
申请公布号
US3158323(A)
申请公布日期
1964.11.24
申请号
US19630258018
申请日期
1963.02.12
申请人
PAUL SONNEVILLE ROGER
发明人
SONNEVILLE ROGER PAUL
分类号
E01B9/28;E01B9/30;E01B23/00
主分类号
E01B9/28
代理机构
代理人
主权项
地址
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