The instant invention overcomes the difficulties encountered with respect to mounting electrical wiring devices to a common box and then positioning the devices relative to each other prior to attaching a wall plate. Some of the difficulties encountered are positioning the wiring devices to be in alignment...http://www.google.com/patents/US7230183?utm_source=gb-gplus-sharePatent US7230183 - Multifunction clips and ground/mounting strap for wiring device
