It is no doubt a badged machine. You will need a bottle of Triflow - put a drop of it on each of the moving parts and any screws you want to remove. Let the Triflow do the work a few days before you try to take out any screws. Check in the Vintage photos and see if you see a machine that looks similar to yours:
http://www.quiltingboard.com/vintage...s-t130994.html