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发明名称
Verfahren zum Herstellen von hohlen Staeben oder Rohren aus Stahl
摘要
申请公布号
DE569496(C)
申请公布日期
1933.02.03
申请号
DED569496D
申请日期
1930.09.20
申请人
AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN
发明人
分类号
B21B23/00
主分类号
B21B23/00
代理机构
代理人
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