In a charging connector device for an electric vehicle composed of a power supplying connector and a power receiving connector, an indicator lamp of a two color type is set in an illumination chamber within a case body of the power supplying connector. One color of the two colors is used for illumination....http://www.google.fr/patents/US5751135?utm_source=gb-gplus-shareBrevet US5751135 - Charging connector for electric vehicle