An accessory, via several embodiments, is used to keep vehicle outside rear view mirrors clear of water, snow, ice, and dirt, using many available components mountable on supports of present vehicle outside rear view mirrors. Each accessory installation includes controls located inside a vehicle within...http://www.google.de/patents/US4763381?utm_source=gb-gplus-sharePatent US4763381 - Accessory used to keep outside rear view mirrors of vehicles clear of water, snow, ice and dirt
