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发明名称
Roll forming machines
摘要
申请公布号
US3251210(A)
申请公布日期
1966.05.17
申请号
US19630285442
申请日期
1963.06.03
申请人
ENGEL EQUIPMENT, INC.
发明人
WERNTZ CHARLES W.
分类号
B21D5/08
主分类号
B21D5/08
代理机构
代理人
主权项
地址
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