A switching device having a central actuator and two outer actuators disposed separately from the central actuator on two sides, wherein the central actuator is a cylindrical dial (23) supported rotatably and depressibly by a pair of spindle bearings (26) included in a base plate; the base plate (25)...http://www.google.de/patents/US6862459?utm_source=gb-gplus-sharePatent US6862459 - Switching device
