1893 - Thomas Edison received two U.S. patents. The first was for a "Cut Out for Incandescent Electric Lamps" and another for a "Stop Device" (No. 491,992-3). Also No. 492,150 for "Process of Coating Conductors for Incandescent Lamps."
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Johann Karl Friedrich Rosenkranz
Johann Karl Friedrich Rosenkranz (April 23, 1805 - July 14, 1879), German philosopher, was born at Magdeburg.
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