Add the Beltuna Leader line and the Hohner Imperator.The 2 I'm aware of (beside the already mentioned 1950's Hohner Atlantic):
Hohner GOLA
Excelsior Symphony Gold

I find the system that the Gola has as having the most dramatic sonic effect.
An interesting thing that I noted is that the "Amplisound" system on the Beltuna seems to mostly affect the piccolo reeds and makes the 5/5 setup sound very much like a 4/5 accordion without adding much mellow-ness like on the other systems as much.
In talking about companies that make bad name choices, Chevrolet falls under that umbrella too with the NOVA, which was hugely popular in North American, but in Spanish means "doesn't go" or "no go"... lol
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