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发明名称
Verfahren zur Warmverformung eines Rohres mit kreisfoermigem Innenquerschnitt zur Erzielung von Laengsrippen
摘要
申请公布号
DE928642(C)
申请公布日期
1955.06.06
申请号
DE1951H009260
申请日期
1951.07.28
申请人
ANDRE HUET
发明人
分类号
B21C37/20;F28F1/02;F28F1/16
主分类号
B21C37/20
代理机构
代理人
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地址
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