'In 1875, Thomas Edison invented the electric pen. It was a motorized stylus that worked like a stencil: it could punch words through a stack of up to 100 pages. This was supposed to replace copying, which back then was really time consuming. Edison said “There is more money in this than telegraphy.” But users hated it; it was almost impossible to use….The zigzag: In the 1890s, tattoo artists started using the pen technology for the first electric tattoo needle.'
Rather like the idea of ZigZag inventions.
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