Are ww2 weapons copyrighted?.. (Mp40,Gewehr 43…) Can i use them in Game?..
You’re really going to be needing to look at this on a case by case basis, as a blanket answer will not do anyone any good.
Do you know where one could find such information? Would be interested in the answer of the question, too.
Is there some official database to check? At least for specific countries like the US?