Vacuum apparatus used to exhaust Edison incandescent
Vacuum apparatus used to exhaust Edison incandescent light bulbs at G (centre top). From Scientific American, New York, 1880. Engraving
Picture No
13908306
Media ID
48483590
Size
4178px x 4500px
(3.3MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive
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Bulbs Edison Exhaust Illumination Incandescent Vacuum
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