发明名称 Blanks for sheet material forming process
摘要 A blank for a sheet metal forming process having a part portion surrounded by a peripheral portion. The peripheral portion has a portion thereof which is discontinuous whereby scrap is minimized.
申请公布号 US5604044(A) 申请公布日期 1997.02.18
申请号 US19950384443 申请日期 1995.02.02
申请人 MCCABE, CHARLES J.;STEVENS, RONALD W. 发明人 MCCABE, CHARLES J.;STEVENS, RONALD W.
分类号 B21D22/22;B21D28/06;(IPC1-7):B21C1/00 主分类号 B21D22/22
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