There's some really fun stuff here:
www.bulgier.net - /pics/bike/Catalogs/AustroDaimler/76/UltimaSuperleicht_info/
The press release in image 5 shows both the Steyr and Puch logos on the letterhead. It also
glories in these being "the world's most expensive range of production bicycles." That kills me. I bought mine from a guy who had turned it into a fixie, complete with rack and fenders. I guess he didn't realize what a symbol of prestige he had on his hands.