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."
... l, v. All of these but r have nasalized forms. Sanskrit also has palatal, retroflex, and alveolar sibilants. Rounding out the consonants are the voiced and voiceless ...