Off the top of my head I can remember a model 525 that was stamped, as Dave pointed out, Klien. (Or Klein?)
We were doing, or going to do, blades for Cold Steel too, but I dont know how far we got into that before the whole idea was scrapped.
Also, we ground some blades for the 192 Smatchet, I think it was 500 pieces?
And while we had a custom shop we did some blades for a company called Cedar Creek. I remember a large and small fillet knife and a bowie like knife which was called, I believe, a Stinger. The Cedar Creek knives had a great handle, it kind of wrapped around the top and bottom of your hand.
I hope this helps.