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 age of 18 living with them, 67.6% are married couples living together, 11.5% have a female householder with no husband present, and 16.6% are non-families. 13.2% of ...