Heh. Quebecers sometimes refer to themselves as Canadiens.. it's the Quebecois spelling.
I never really understood why Inglis existed only in Canada and basically was rebranded Whirlpool. After our GE Filter-Flo died, it was replaced by an Inglis washer and it's still kicking around today.
However, oddly enough, Inglis machines have pretty much disappeared out of the appliance shops and I'm not sure why. They're all Whirlpool now.
As for the designs differing, I'm not sure either. No reason for them to. Maybe it was a market driven thing, who knows...