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."
... that occurs, particularly between word-boundaries, in spoken language generally, but is codified in Sanskrit and written down. A simple example of English sandhi is "an ...