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IIM-versio
2
Mallonga titolo
0460000983
Ŝlosilvortoj
Edison Swan Electric Co Ltd;Sir Joseph Wilson Swan;Thomas Edison;Unknown (creator);
Sir Joseph Wilson Swan, scientist and inventor, c1900.
Posedanto de la aŭtorrajto
Oxford Science Archive / Heritage-Images
Informo por mesaĝigi
Nathan Grainger
Titolo de bildo
Sir Joseph Wilson Swan, scientist and inventor, c1900. Swan invented the incandescent electric lamp in Britain at about the same time as Thomas Edison patented it in the USA. He also invented a vacuum pump for light bulbs and several photographic processes. Later, Edison joined up with Swan to form the Edison & Swan United Electric Light Company.