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What replaced the electric pen that Thomas Edison invented? — Preceding unsigned comment added by 206.255.125.58 (talk) 04:30, 25 January 2013 (UTC)[reply]
Nothing really, however in 1891 a guy by the name Samuel O'Reilly saw the pen and came up with a totally different application for it - modify it to inject ink into the body - an invention that would become to be known as the tattoo machine. --CyberXRef☎ 15:43, 3 April 2014 (UTC)[reply]