So in the research I did it looked like Warranted Superior is a kind of sub-brand Disston. Fulton saw was apparently a Sears saw. So it seems Warranted Superior saws were either Disston saw sold as department store saws or else were a brand that Disston purchase and adapted to their brand but didn’t want to give the premium Disston name. It also seems that if you got a replacement medallion for a Disston saw it was a Warranted Superior medallion.
Or at least that seems to be what I found or my understanding.
Here is a link to Disston Institutes explanation to.