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US5279451A Dispensing closure with twist collar 失效
带扭环的点胶封口

Dispensing closure with twist collar
摘要:
A dispensing closure is provided for a container and includes a base for being mounted to the container over the container opening. An actuator is mounted on the base and is tiltable between a closed position and an open position. A ring is mounted on the base for rotation relative to the base and actuator. The ring and base together cooperatively define a cam drive system for effecting the tilting of the actuator.
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