| 摘要 |
<p>A helical band (15) comprising a first rail (16a) having a central longitudinal axis, a second rail (16b) having a central longitudinal axis, multiple rungs (17) extending between the first rail and the second rail and oriented generally transverse to the respective central longitudinal axes of the first and second rails, the central longitudinal axis of the first rail, the central longitudinal axis of the second rail, and the rungs configured and arranged in spacial relationship to each other such that the first rail and the second rail generally form a twisted circular double helix (fig. 1), and an ornamental element (18) supported by at least one of the rungs.</p> |
