https://www.google.com/search?q=america+stole+britain+intell...
There's plenty of documented evidence that America illegally stole tons of IP, often paid for by the state no less, otherwise known as industrial espionage.
I'm sure they did it to all the European powers of the time too, probably plenty of examples of stolen tech from Spain, the Dutch, etc.
As I'm sure Britain, etc. did to the civilizations more advanced to them in the centuries before too, you can bet there were proclamations about not taking technology out of the cities that had monopolies on them, and were smuggled out illegally or simply attacked for them.