发明名称 Method of making a cooking vessel which has surface ornamentation
摘要 A metal sheet is deformed to produce a blank which has one side which is smooth and another side which is ornamented with a pattern of raised and/or depressed areas. The blank is deformed to produce a cooking vessel which has the ornamented side located on its exterior surface.
申请公布号 US4347722(A) 申请公布日期 1982.09.07
申请号 US19800150822 申请日期 1980.05.19
申请人 ULAM, JOHN B. 发明人 ULAM, JOHN B.
分类号 B21H8/00;B23P15/00;(IPC1-7):B21D51/22 主分类号 B21H8/00
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