There is no IP. It expired 65 years ago. I suspect you would also be angry if he called it "the Heine" claiming he just ripped off "the Nivex". And you have got to be kidding about your hate of modern manufacturing, right?
What you say is true. But how hard would it be to say - "This was a great idea, I've replicated it so you can enjoy it today (at a price)"
And I don't have a real hatred for modern manufacturing, Professionally, I was dependent on it for many years. But it does lack soul.