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发明名称
Improvements in devices for supporting screeds
摘要
申请公布号
GB982822(A)
申请公布日期
1965.02.10
申请号
GB19620045428
申请日期
1962.11.30
申请人
O.G. OHLSSONS BYGGNADS A/B
发明人
分类号
E01C19/40;E01C23/01
主分类号
E01C19/40
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