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经营范围
发明名称
Production of cup-shaped hollow bodies from metal billets
摘要
申请公布号
US2237993(A)
申请公布日期
1941.04.08
申请号
US19390268131
申请日期
1939.04.15
申请人
THE FIRM TUBE INDUSTRIAL PARTICIPATION LIMITED
发明人
KORBULY KAROLY
分类号
B21C23/03
主分类号
B21C23/03
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