having both self-opening and self-closing mechanisms which interact with each other

Full Title

Drawers for tables, cabinets or like furniture; Guides for drawers (A47B63/02 takes precedence; drawers coupled to doors A47B96/16) > Sliding drawers; Slides or guides therefor > Actuated drawers > operated by mechanically-stored energy, e.g. by springs > having both self-opening and self-closing mechanisms which interact with each other