I have seen it done in old houses where the service could not handle the load of both appliances. The way it was done was by installing a priority load sharing device on the cable coming from the panel and then wiring both appliances with their own cable to this device. The load sharing device would then only let one appliance be connected at any one time, my understanding is that the range would always have priority. If the dryer was on and somebody switched on the range then it would automatically switch the circuit to feed the range and turn of the dryer circuit. I have never hooked one up, but have taken a couple out years ago when replacing the old service.
