Wade - Solingen is a town in Germany famous for its knife and blade making industry that goes back as far as the late middle ages. Quite a number of companies still exist there, from high quality handmade custom forgers to market leaders in knifes and cutlery.
But afaik Olsen was a US company based in Howard City Michigan selling knifes of own and contracted production.
Probably they had a license from BEAR and then contracted some German company for the actual production. But that's just a guess, since I had never seen a FRED BEAR knife before.
On the other hand, I seem to remember seeing boots with the signture logo?!?!?