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发明名称
Method and apparatus for flanging sheet metal
摘要
申请公布号
US2422883(A)
申请公布日期
1947.06.24
申请号
US19420428094
申请日期
1942.01.24
申请人
DOUGLAS AIRCRAFT COMPANY, INC.
发明人
BRUDERLIN HENRY H.
分类号
B21D22/10
主分类号
B21D22/10
代理机构
代理人
主权项
地址
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