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发明名称
Extrusion press
摘要
申请公布号
US1825017(A)
申请公布日期
1931.09.29
申请号
US19300477567
申请日期
1930.08.25
申请人
FRITZ SINGER
发明人
SINGER FRITZ
分类号
B21C23/21
主分类号
B21C23/21
代理机构
代理人
主权项
地址
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