In both cases, Autodesk's basis was that they had "been using the DWG name with its CAD software products since at least as early as 1983.
В обоих случаях доводы Autodesk базировались на том, что она использует название DWG в своих САПР-программах с 1983 года («been using the DWG name with its CAD software products since at least as early as 1983»).