Crazy deco German ceiling fans

Factual Questions
1

I googled this extensively with no success. Throw me a bone.

I’m looking for the very expensive ceiling fans with the propellers ON the blades, so it’s basically 2 or 3 fans with one on each blade. The whole thing spins like a regular ceiling fan, but the propulsion is not coming from above - the fans on the blades are propelling the thing.

Anyone know what I’m talking about? They are very stylish with a '30s design, like a DC-3 or an old blender. The name is VERY German, but I can’t find it on a search.

2

Are any of these what you’re looking for? Especially down near the bottom…

3

Damn, jayjay, those ARE some expensive fans and exactly very close to what I was TRYING to describe. Not the one I’m looking for. Thanks for the link. This thing I’m trying to find looks like 2 planes chasing each other around the room, but with no wings and no gunfire .

The name is very German, I just can’t remember it.