Centric Business Systems - powered by UBEO on Twitter: "It's #NationalInventorDay! We'd like to say thank you to Johannes Gutenberg, the inventor of the moveable-type printing press, & Chester Carlson, the inventor
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Did Gutenberg Invent The First Printing Press?
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Johannes Gutenberg | Printing Press, Inventions, Facts, Accomplishments, & Biography | Britannica
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How the Invention of the Printing Press Changed the World - Articles by MagellanTV
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SCIplanet - The Invention of Printing: Spread the Word!
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