It was the synthesizer he used on many of his famous works. To this day, nothing else sounds the same, though many try.
COF and Bladerunner are the best examples of it. Pretty much every new synth comes with a built in version of his signature sounds from those...well, tries to ;)
Great to know! Thanks. Blade Runner is one of my all time favourite movies and soundtracks.
Perhaps my favorite all time Prog band is Pete Bardens and Camel~ The Flight Of The Snow Goose