The problem is some PE has read up on the FujiGen Gakki guitars of the 70s and thought they could strike rich with a test case in a soft German court - and they were right.
I just finished restoring the Univox Coily that was sitting in my parents' basement for the past 25 years. Every time I step into the room and see it I do a double take because it looks so cool. (It sounds pretty great, too, especially through my Kay 703, aka the widowmaker.)
it's yet to be proven that they are right, the only thing they won in the german court is a default ruling because they picked a defendant who they knew wasn't going to show up so they could get a default ruling. The actual merits of the case have yet to be tried.