Johann Friedrich Unger
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Johann Friedrich Gottlieb Unger (1753, Berlin - December 26, 1808, Berlin) was a German printer and publisher (Holzschneider, Drucker, Typograph).
He was a son of the printer Johann Georg Unger (October 26, 1715, Goes bei Pirna - August 15, 1788, Berlin).
On 1793, he invented the "Unger-Fraktur".