"Gloeilampen." . . "Inventors Biography United States." . . "United States." . . "Erfindung." . . "Elektrisches Licht Geschichte." . . "Uitvindingen." . . "Inventors." . . "Lampes à incandescence." . . "Geschichte." . . "Geschichte" . "Incandescent lamps History." . . "Inventors United States Biography." . . . . "Incandescent lamps." . . . "Edison's electric light : the art of invention" . "Edison's electric light : the art of invention"@en . . . . . . . . . . "History"@en . "History" . . . . . . . . . . "Electronic books"@en . . . . "Biography" . "Biography"@en . . . . . . . . . . . . . . "Edison's electric light the art of invention"@en . "Edison's electric light the art of invention" . . . "Biographie" . "Glühlampe." . .