Patent US3371241 - Vehicle light dimming system including solid state circuitry and manual ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentswww.google.comhttp://www.google.com/patents/US3371241?utm_source=gb-gplus-sharePatent US3371241 - Vehicle light dimming system including solid state circuitry and manual control meansAdvanced Paten