4 0 c m
32cm
actual image size: 24cm x 32cm
Description
Sir Joseph Wilson Swan (1828-1914) 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 proceses. Later Edison joined up with Swan to form the Edison and Swan United Electric Light Company.
Image Details
Image Ref.
10305299
© Science Museum / Science & Society Picture Library