Working procedure for drawing to obtain profiled elements on sheet metal for industrial or building use, equipment to activate said procedure and profiled sheet metal obtained with this procedure.,申请号IT19890041603-传众专利搜索

发明名称	Working procedure for drawing to obtain profiled elements on sheet metal for industrial or building use, equipment to activate said procedure and profiled sheet metal obtained with this procedure.
摘要
申请公布号	IT1233525(B)	申请公布日期	1992.04.03
申请号	IT19890041603	申请日期	1989.05.23
申请人	PROGETTI IN S.R.L.	发明人	LUIGI ZEN
分类号	B21D;(IPC1-7):B21D/	主分类号	B21D
代理机构		代理人
主权项
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