Kickboard with drag inducing channel
作者： Stephen J. Hall
DOI:
关键词:
摘要: One aspect of the invention provides a drag-inducing kickboard. The kickboard has an undersurface. A funnel member projects from undersurface and comprises at least one inner surface that is spaced apart to form channel between shaped provide with front opening for allowing water into rear escape channel. cross-sectional area greater than opening.
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