Does this count?
I have a Gtech Pro 2, and I think it's design is a bit like a vintage Pinnock Premier vacuum from Australia. The bag seems to hang from a slot which lets you see the dirt in the bag, and the airflow works diagonally towards the motor, like how the Pinnock worked, which at the time was called cyclonic action.
The Pro 2 design is quite familiar, the difference being the Pro 2 is handheld, the Pinnock Premier was a cylinder. But I think it's still pretty amazing how a cordless vacuum of today that is bagged was made only slightly like a rare vintage. Quite remarkable.