| 摘要 |
A lid with a holding knob and coupling elements designed to secure the holding knob to the lid. The coupling elements comprise at least one lug and a notch having an entry portion for the lug to pass through the notch, as well as a retaining portion for retaining the lug in the slot. The lug is mobile between the entry portion and the retaining portion, when the knob and lid are moved relative to one another.
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