I believe the AEG HBSE 75s was available in the USA @110V, they come up on ebay occasionally. I picked up the 240V version in Australia and the sanding frame fits no problem.
There's a post floating around somewhere ( I think it was by gerhard on an australian forum) with the history of these belt sanders, before Festool took over part of Holzher I believe the basic design had been resold under many different brands, AEG/Holzher/Metabo being the main ones, but I'm sure I've even seen a Bosch and Atlas Copco that look like the same shape.