That is what I thought, but there is a 'Frankenstein' appliance on the market consisting of a dishwasher on the bottom, an oven in the middle and a cooking hob on the top. (The Candy Trio). But it is a domestic appliance rather than commercial, I think.Probably, but it's the stupidest thing to do. Mainly because every time you open the d/w door, you let out a cloud of steam that wafts upwards- towards the electronics and motherboard of the nice expensive combi oven.
Of course accessing the oven while the d/w door is open is pretty impossible to do as well.....