[jcranberry]

The Numenorians actually also had a technological revolution, although I don't know whether it was industrial. They unfortunately faced the setback of being almost entirely wiped out when their continent was sunk by Illuvatar.

[jleyank]

Both the Elvish and Numenorian comments discussed hand-made, almost magical creations similar to what we imagine pre-industrial. So I think we're all in agreement that there were some amazing things created, but not at scale (perhaps aside from weaponry, but that's probably a long, slow accretion) and not for consumption.