发明名称 Package of mechanical pencil refill leads
摘要 A multiple package unit consisting of a plurality of packages of mechanical pencil refill leads is formed of first and second sheet materials. The first sheet material includes a plurality of integral parallel sections each shaped to provide an elongated swelling on one side, a corresponding recess in the other side and a substantially flat marginal flange integral with the swelling and extending outwardly therefrom. The sections of the first sheet material form separable containers, respectively. Refill leads are housed in the recess in each container. The second sheet material includes a plurality of flat and integral sections each extending over a recess in one of the containers and secured to the marginal flange thereof to form a closure of the container. Each container cooperates with the leads therein and with associated closure member to form a package which is separable from an adjacent package by means of score line formed in at least the first sheet material. Each container is provided with a weakening cut formed in the swelling adjacent to one end thereof to facilitate opening of the package.
申请公布号 US4266667(A) 申请公布日期 1981.05.12
申请号 US19790077121 申请日期 1979.09.19
申请人 SAKURA COLOR PRODUCTS CORPORATION 发明人 ISHIGAKI, KAZUMI
分类号 A45C11/34;B65D75/32;B65D75/36;B65D85/28;(IPC1-7):B65D83/02;B65D85/20 主分类号 A45C11/34
代理机构 代理人
主权项
地址