A retaining clip comprising a U-shaped body having a pair of legs that are flexibly connected at their bottom ends and spaced apart to receive therebetween a blade fastener is herein disclosed. Each of the legs of the retaining clip has a head projection that extends laterally from its top end and a...http://www.google.de/patents/US6796006?utm_source=gb-gplus-sharePatent US6796006 - Rib clip
