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发明名称
Walzwerk zur fortlaufenden Herstellung von senkrecht aufsteigenden Quervorsprüngen an stabartigen Metallstücken.
摘要
申请公布号
AT139058(B)
申请公布日期
1934.10.25
申请号
ATD139058
申请日期
1931.04.23
申请人
HUGO SEIFERTH
发明人
HUGO SEIFERTH
分类号
主分类号
代理机构
代理人
主权项
地址
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