we all knew that the E-50M is a Wargaming-invented fake, but now, we have a legal document to prove it! :) Many thanks to Alpha_Dude for finding this info.
On 24.7.2012, Wargaming filed a patent application (no. 29/427,959) to protect the E-50M design. The proceedings took more than two years and on 9.9.2014, the patent protection of the E-50M design was approved. It’s now protected for 14 years.
Funnily enough, the “inventor” of the patented vehicle is noone else than Sergei Burkatovskyi (aka SerB). There you have it, SerB is officially the inventor of the E-50M :)
The legal document follows: