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发明名称
Improvements in concrete paving slabs
摘要
申请公布号
GB472917(A)
申请公布日期
1937.10.04
申请号
GB19360010511
申请日期
1936.04.09
申请人
DUDLEY HEPBURN STENT
发明人
分类号
E01C15/00
主分类号
E01C15/00
代理机构
代理人
主权项
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