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发明名称
Vägskrapstål
摘要
申请公布号
FI13490(A)
申请公布日期
1931.04.24
申请号
FID13490
申请日期
申请人
发明人
SMITT GOESTA JOHAN JAKOB
分类号
E01C23/12;(IPC1-7):E01C23/12
主分类号
E01C23/12
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代理人
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