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发明名称
Forming of sheet metal
摘要
申请公布号
US2952294(A)
申请公布日期
1960.09.13
申请号
US19580736583
申请日期
1958.05.20
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
BEVERLEY GRAHAM E.;WALLACE JOHN F.
分类号
B21D11/02
主分类号
B21D11/02
代理机构
代理人
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