Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions (frangible inner closure members associated with caps, lids or covers B65D51/20)

Child Classifications

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• B65D 17/02
• B65D 17/04
• B65D 17/06
• B65D 17/28 at lines or points of weakness
• B65D 17/42 with cutting, punching, or cutter accommodating means (for opening at lines or points of weakness B65D17/28)
• B65D 17/50 Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs (flexible adhesive strips adapted to seal filling or discharging apertures B65D53/08)
• B65D 17/52 Attachment of opening tools, e.g. slotted keys, to containers