- Click to enter P.R.King Web Site Welcome to the P.R. King & Sons Website. We are specialists with a proud record in the supply and installation of inclined & vertical passenger lifts. We are the proud suppliers and agents in Australia for the Inclinator inclined lift, the Stannah Stair lift & Powerchair, the Terry Step lift and the Garaventa Wheelchair Lift & Genesis Lift. These are all aids ...prking.com.au