Can ? Wow, haven't heard that one in a while. Yeah, maybe they could be labelled as the parents of Industrial. But I think a lot of the experimental Moog stuff from the 60's, and even the old weird sound effects experimentalists going back to the 20's (?!) can be labelled as such.
I think Industrial as a concept for music, not just a sound, was more in the late 70's, though.....
And Joy Division ? Industrial ? Uhhhhmmmm. Nuh-uh. I loved them, they were my fave band until I really got into the Chameleons UK (hence my A'gon nym), but I would never classify them as Industrial. Always worth mentioning though ! So thanks for that !