A hair curling appliance includes two hair curling wands and a base assembly for heating the wands to a desired temperature. The base assembly includes two overlapping plate-like retention members having trough-like end portions which coact to form sockets for receiving the wands, and center portions...http://www.google.es/patents/US3946196?utm_source=gb-gplus-sharePatente US3946196 - Hair curling appliance
