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发明名称
摘要
申请公布号
DE2127249(A1)
申请公布日期
1972.12.14
申请号
DE19712127249
申请日期
1971.06.02
申请人
BEHRENS AG C
发明人
分类号
B21D55/00;(IPC1-7):21D55/00
主分类号
B21D55/00
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