i was looking in more documentations of iona appliances this pic appeared, and it seems to have been created in 1989, i could be wrong but this looks like a the first version of the logo, heres a link https://trademarks.justia.com/740/28/n-a-74028999.html and as you can see it represents the dual cyclonic action.
it seems to me like the cyclone xt was going to be called the thunder xt which by the way they look very alike and they are, the cyclone xt is just a more modern version of the thunder it seems to be. https://trademarks.justia.com/754/08/thunder-xt-75408762.html
it seems to me like the cyclone xt was going to be called the thunder xt which by the way they look very alike and they are, the cyclone xt is just a more modern version of the thunder it seems to be. or could be an entirely new model https://trademarks.justia.com/754/08/thunder-xt-75408762.html
