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发明名称
摘要
申请公布号
FR2047984(A7)
申请公布日期
1971.03.19
申请号
FR19700023446
申请日期
1970.06.24
申请人
FAGERSTA BRUKS AB
发明人
分类号
B21D37/01;(IPC1-7):B21D37/00
主分类号
B21D37/01
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