| 摘要 |
A ring shank comprising pivotal shank portions pivoted together at one end thereof. The free ends of the shank portions are provided with a ball and socket joint connection which releasably hold their portions in the closed position. A locking clasp is pivotally secured to one of the shank portions and may be pivotally moved so as to embrace the free ends of the shank portions to maintain the portions in their closed position.
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