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发明名称
摘要
申请公布号
FR2264920(B1)
申请公布日期
1977.04.15
申请号
FR19750007662
申请日期
1975.03.12
申请人
BURBACH EICH DUDELANGE ACIERIES
发明人
分类号
E01F15/00;E01F15/04;E01F15/06;(IPC1-7):E01F15/00
主分类号
E01F15/00
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