I guess the Virutex might have been licensed.
Not sure. Virutex certainly copied a number of Elu designs, e.g.the CE24 planer (a copy of the Elu MFF40) and the 8mm plunge routers (in fact a bought-in Perles-made copy of the Elu MOF96 plunge router). In the 1990s they also made a jigsaw with a ceramic blade guide system not unlike the first Festo jigsaws of the same ilk, so copy or licensed? (Even Bosch got in on this act by bringing out their own ceramic guide jigsaw, the GST135B which was a good jigsaw, but which did cook blades). Then there's a whole slew of Virutex sanders and planers which are the spitting image of some of Makita's models. A really curious company, especially when you consider some of their own unique products, such as a tilting plunge router, tilting laminatecl trimmer, compass power planer, abrasive planer, etc
Virutex hot their teal livery colour from Makita (as did Wolf in the UK, potentially) and Makita are known to have licensed their plunge saw technology along with the Systainer carrying case design they now use from TTI/Festool
LS130 (really niche uses though) and RO90 (opposite, fantastic machine).
Well, in-line pneumatic (as opposed to electric) sanders like the LS130 aren't unknown and I believe that Sengar in Halifax were making them back in the 1940s. The Rotex line is also interesting, but Metabo have made their own variable orbit ROS for more than 15 years, now being into their 2nd generation, so not as unique as all that
Nothing new under the sun?