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发明名称
Verfahren und Walzwerk zur Erzeugung duennwandiger offener Hohlkoerper mit gleichmaessiger Wandstaerke
摘要
申请公布号
DE686845(C)
申请公布日期
1940.01.17
申请号
DE193601B6733D
申请日期
1936.12.22
申请人
PAUL BERNHARDT
发明人
BERNHARDT PAUL
分类号
B21D22/16;B21H1/00
主分类号
B21D22/16
代理机构
代理人
主权项
地址
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