I happen to come across this website that has a vast amount of information on patents and detailed information on things such as Tesla's inventions
and anti gravity technology, etc. I'm sure some people will automatically call it bunk but give it a try and let me know what you guys think.
I've ordered stuff from them and have not been disappointed. They're informative, too. They're one of my favorite sites (next to this one, of
course.:up.