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发明名称
Machine for forming an annular sheet metal workpiece
摘要
申请公布号
US2802439(A)
申请公布日期
1957.08.13
申请号
US19530346816
申请日期
1953.02.25
申请人
THE BUDD COMPANY
发明人
KAY JOHN GILCHRIST
分类号
B21D53/30
主分类号
B21D53/30
代理机构
代理人
主权项
地址
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