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."
... entitled Von Magdeburg nach Königsberg (1873), which deals with his life up to the time of his settlement at Königsberg.
See Quabicker, Karl Rosenkranz (1899), ...