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发明名称
Improvements in and relating to the manufacture of products of concrete
摘要
申请公布号
GB730674(A)
申请公布日期
1955.05.25
申请号
GB19520030765
申请日期
1952.12.04
申请人
ERIK JOHAN VON HEIDENSTAM
发明人
分类号
B28B23/06
主分类号
B28B23/06
代理机构
代理人
主权项
地址
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