Heinrich Göbel - Wikipedia
Did Edison Invent the Lightbulb? Yes and no!
Incandescent light bulb memorial project | Mysite
The history of the Light Bulb - Gizmo Highway Technology Guide
Carbon filament light bulb hi-res stock photography and images - Alamy
akg-images - 361000.jpg
Designed 1854 by heinrich goebel hi-res stock photography and images - Alamy
Inventor Heinrich Goebel Springe, Stock Photo, Picture And Royalty Free Image. Pic. WR0674283 | agefotostock
Who Invented the World's First Lightbulb - History of the Incandescent Bulb
Everything You Thought You Knew About the History of Invention Is Wrong
Pacific Lamp & Supply Company
akg-images - 168745.jpg
Light Bulb Bottles | BEACH
Incandescent Light Bulb/Lamp timeline | Timetoast timelines
Incandescent Light Bulb/Lamp timeline | Timetoast timelines
Edison light bulb 19th century hi-res stock photography and images - Alamy
Energy Timeline | Timetoast timelines
Heinrich Göbel - Wikipedia
File:Goebel lamp01.jpg - Wikimedia Commons
Early Incandescent Lamps
