Off The Top Of My Head
Posted the long drawn out story before,when this topic was brought up several months (or weeks)ago, over the same machines IIRC.
Long story short, Alliance got much if not all of the patents and such for Raytheon's commercial and domestic laundry equipment (Amana and Speed Queen), from Raytheon, with a proviso that they stay out of the domestic laundry market for "X" amount of years. Alliance in turn allowed whomever owned Amana (not sure if Maytag got them first from Raytheon), to use certian patents and such under license from those brands. This was how "Amana" was allowed to continue to build the same washing machines built on the "Raytheon" designs. And is also why Maytag began crying foul when Alliance supposedly jumped the gun and re-entered the domestic laundry market.
IIRC, Speed Queen in the United States was mainly Raytheon's commercial laundry line, and Amana models were if not domestic versions, were based in most cases on SQ designs. So when Raytheon sold off it's laundry divisions, Alliance continued to make SQ but only for the commercial market, while Maytag had Amana machines (based on Raytheon's designs/patents), for domestic sales.
Again the whole story is in the group archives.