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."
... the DVD Consortium sought to impose. The cryptographic keys themselves have been discovered and widely disseminated (see DeCSS). See Professor Edward Felton's ...