发明名称 A METAL CLOSURE WITH SEPARATE DISC AND RING FROM A SINGLE CLOSURE BLANK
摘要 A method of production of a metal closure (1') having a disc (10') constrained within a peripheral ring (20'). The metal closure is produced from a conventional one-piece closure blank by cutting the sidewall (20) and/or top plate (10) in the transition therebetween.
申请公布号 PT2228152(E) 申请公布日期 2013.03.18
申请号 PT20100165997T 申请日期 2007.10.31
申请人 CROWN PACKAGING TECHNOLOGY INC 发明人 CHRISTOPHER PAUL RAMSEY;PAUL ROBERT DUNWOODY
分类号 B21D51/44;B21D51/38;B65D51/14 主分类号 B21D51/44
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