A holding device for holding a cooling fan comprising: a duct having a hollow in which a cooling fan is to be fitted; a stopper portion which keeps one operative end of the cooling fan from further moving to hold the cooling fan at a fitting position; and a plurality of elastic wall segments formed in...http://www.google.se/patents/US7500827?utm_source=gb-gplus-sharePatent US7500827 - Holding device for holding cooling fan