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经营范围
发明名称
Improvements in or relating to methods of and materials for road construction
摘要
申请公布号
GB369979(A)
申请公布日期
1932.03.29
申请号
GB19300028929
申请日期
1930.09.26
申请人
FRANCIS GORDON SMALL
发明人
分类号
E01C5/16
主分类号
E01C5/16
代理机构
代理人
主权项
地址
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