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发明名称
Vorrichtung zum radialen Zusammenziehen und gleichzeitigen Strecken hohler Metallkörper.
摘要
申请公布号
AT128769(B)
申请公布日期
1932.06.25
申请号
ATD128769
申请日期
1930.10.01
申请人
UNITED STATES PIPE AND FOUNDRY CO.
发明人
分类号
主分类号
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