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发明名称
Verfahren zur Herstellung nahtloser, konischer oder abgesetzter Rohre in Pilgerwalzwerken aus vorgewalzten Rohrstuecken
摘要
申请公布号
DE597715(C)
申请公布日期
1934.05.30
申请号
DE1932V028928D
申请日期
1932.12.07
申请人
VEREINIGTE STAHLWERKE AKT.-GES.
发明人
KLEIN LUDWIG
分类号
B21B21/00
主分类号
B21B21/00
代理机构
代理人
主权项
地址
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