A wiping or scraping device, particularly for cleaning a human tongue, is provided having one or more wiping teeth or wiping elements. Each tooth or element has at least one scoop-like side which terminates at a wiping edge or ridge in an undercutting fashion. Various embodiments are provided for providing...http://www.google.se/patents/US5810856?utm_source=gb-gplus-sharePatent US5810856 - Wiping element for an oral hygiene device, window wiper, or the like
