The Mellotron Group

Hello

I started recording some tracks featuring Mellotron, Optigan and Orchestron.  Now, I was wondering, in fact, all these sounds are just samples - who owns the copyright on these recordings? In fact, can you just use this free?
I know that with the usual tron sounds nobody bothers and just puts them on their records, but it was in fact when I was using the optigan, where you have loops of recorded big band and such, at that point this question came up to me...


thanks

Dieter