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发明名称
Apparatus for stretch bending structural elements
摘要
申请公布号
US2442268(A)
申请公布日期
1948.05.25
申请号
US19420451160
申请日期
1942.07.16
申请人
BOCING AIRCRAFT COMPANY
发明人
FIELDS WILLIAM CARL;CARPENTER EDWARD E.;FINNEY GEORGE G.
分类号
B21D11/02
主分类号
B21D11/02
代理机构
代理人
主权项
地址
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