> a single Apple (Packard-Bell) ][+

I'm curious what were you referring to here. Did Packard Bell make Apple 2 clones? I didn't find anything in a quick search.

They might be thinking of the Bell+Howell clone:

https://www.oldcomputers.net/bellandhowell.html

https://dfarq.homeip.net/the-bell-and-howell-apple-ii/