I've never seen one, rarely seen a Maytag single (Kim's shed?), but I understand there's also a Maytag flat-twin.
As Wikipedia is currently doing its usual thing of flailing around in the dark, those knowledgeable in the ways of the flat twin would be valuable over here at present.
As usual though, expect the Wikipedia editing experience to be less rewarding than Usenet in an alt.* group at the start of the school holidays...