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发明名称
Improved method of manufacturing profiled metal pieces, such as metal plates, stripsor the like
摘要
申请公布号
GB355152(A)
申请公布日期
1931.08.20
申请号
GB19300036296
申请日期
1930.12.02
申请人
HUGO SEIFERTH
发明人
分类号
B21H7/00
主分类号
B21H7/00
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代理人
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