发明名称 Method for producing a screw metal closure with separate disc and ring from a single closure blank
摘要 <p>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.</p>
申请公布号 EP2253396(B1) 申请公布日期 2014.12.03
申请号 EP20100165946 申请日期 2007.10.31
申请人 CROWN PACKAGING TECHNOLOGY INC 发明人 DUNWOODY, PAUL,ROBERT
分类号 B21D51/44;B21D51/38;B65D51/14 主分类号 B21D51/44
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