B65D2517/5051 - CPC Classification

Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins; Non-integral frangible members applied to, or inserted in, a preformed opening; Details of preformed openings provided with a flange Up-turned flange, i.e. extending away from container

• B65D2517/5054 » rolled or folded back, e.g. to avoid sharp edges 8