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发明名称
METHOD OF POSITIONING PUNCHES IN RELATION TO OPENINGS IN DIES SO AS TO ENSURE UNIFORM CLEARANCE THEREBETWEEN OVER THE ENTIRE CIRCUMFERENCE OF THE PUNCH
摘要
申请公布号
PL115344(B1)
申请公布日期
1981.03.31
申请号
PL19780207503
申请日期
1978.06.09
申请人
发明人
分类号
B21D;B21D37/20;(IPC1-7):B21D37/20
主分类号
B21D
代理机构
代理人
主权项
地址
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