ABC, General Electric, and maybe a few others all made twin tub washers with spin dryers. Easy didn't have a lock on that market, but they did on "SpinDrier" which is why none of the others are named such.
These early attempts were at getting household away from wringers, powered or hand cranked which still dominated domestic washing machine market. Results varied which is why in end pretty much only Easy remained until they finally went away.
Though none of these extractor ran higher than 600 rpms (IIRC), not all households had the real estate for twin tub washers. Also the units tended to shimmy, vibrate and even walk. All of which didn't endear them to housewives or consumer testing/reporting groups. The latter liked fact hated wringer was gone, so that was a plus.