Patented 120 years ago: The electric tattoo machine
If you are an inventor with tattoos, you must read this…
I just tripped upon this interesting little story about the patent behind the electric tattoo machine.
Seems this tool was based on an engraving machine invented by Thomas Edison. It just goes to show how you can take an invention that is already out there…add a little twist of your own…and come up with an entirely new patent.
Click the link for the full story: