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."
... (Epilegomena, 1862)
Hegels Naturphilosophie und die Bearbeitung derselben durch Vera (1868)
Erläuterungen zu Hegels Encyklopädie der philosophischen Wissenschaften ...