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发明名称
Improvements in or relating to the shaping of metal sheets or blanks by pressing andto press tools therefor
摘要
申请公布号
GB655743(A)
申请公布日期
1951.08.01
申请号
GB19480028415
申请日期
1948.11.02
申请人
CHARLES JOHN PERCIVAL SMALL
发明人
分类号
B21D22/22
主分类号
B21D22/22
代理机构
代理人
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