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."
... of the community is 18 inhabitants per km².
External links
Ludvika (http://www.ludvika.se) - Official site
Municipalities of Dalarna[?]:
Avesta ...