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发明名称
摘要
申请公布号
NL6605719(A)
申请公布日期
1966.10.31
申请号
NL19660005719
申请日期
1966.04.28
申请人
发明人
分类号
B21D26/14;H02M9/04
主分类号
B21D26/14
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