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发明名称
Verfahren und Vorrichtung zum Aufweiten von Hohlkoerpern
摘要
申请公布号
DE630194(C)
申请公布日期
1936.05.22
申请号
DE1934D068197D
申请日期
1934.06.05
申请人
DEUTSCHE ROEHRENWERKE AKT.-GES.
发明人
WOLFF JOSEF
分类号
B21D41/02
主分类号
B21D41/02
代理机构
代理人
主权项
地址
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