A conduit having socket positions spaced along its length comprises a rear member 50 secured to a wall, a cover member 10 attached to the rear member and an elongate insulating member 30 which prevents conductors 70,71,72 from being exposed when the cover member is detached from the rear member. The...http://www.google.es/patents/US4547030?utm_source=gb-gplus-sharePatente US4547030 - Electrical distribution system
