| 摘要 |
An opener aid for pop-top containers and twist-off bottle caps is worn as a ring on the second joint of either right or left index finger and has a wedge-shaped spur or lug for insertion under the lifter or a pop-top can. The outside surface forms an engagement surface which may be knurled or corrugated to engage the adjoining corrugations of a twist-off bottle cap while applying torque thereto.
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