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发明名称
Method of forming sheet metal without mechanical dies
摘要
申请公布号
US3342049(A)
申请公布日期
1967.09.19
申请号
US19630321550
申请日期
1963.11.05
申请人
DEVINE ARTHUR J
发明人
DEVINE ARTHUR J.
分类号
B21D26/02;C08B3/12
主分类号
B21D26/02
代理机构
代理人
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