发明名称 Tamper-proof container closure
摘要 A container closure in the form of a stopper is provided in which an outer wall engages exteriorly of the wall of the container. A tamper-proof ring is secured to the underside thereof by means of tear-off webs. The internal cylindrical surface of the ring comprises tabs directed obliquely inwardly and in the direction of the opening.
申请公布号 US4899897(A) 申请公布日期 1990.02.13
申请号 US19890389247 申请日期 1989.08.03
申请人 HOFFMANN-LA ROCHE INC. 发明人 BUETTIKER, JEAN-PIERRE;KLAIBER, MAX
分类号 B65D41/48 主分类号 B65D41/48
代理机构 代理人
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