Trimurtisan
Flying by the seat of my pants!
Yes they are, both. An American Hairless Terrier is a bald Rat Terrier. I think it was in the 60s a breeder had a Rat show up with a genetic "oops" and was able to stabilize it. There's a coated AHT which confuses me a bit. Sounds like a Rat Terrier to me, but it can still throw bald babies.I think Trims are American hairless terrier? Or rat terrier?
https://www.akc.org/dog-breeds/american-hairless-terrier/