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."
... Mistakes made by doctors are also reported extensively by the media. The regulatory committees of medical doctors, are doctors themselves. Quackery doesn't have to deal ...