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| View Original: | Swan Electric Light Co. incandescent light, carbon double arch filament, c. 1882 - DSC06555.JPG (3240x4320) | |||
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| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: Swan Electric Light Co. incandescent light, carbon double arch filament, c. 1882 - DSC06555.JPG Light bulb exhibited in the Franklin Institute Philadelphia Pennsylvania USA I took this photograph 2011-10-20 11 04 41 Daderot Light bulbs in the Franklin Institute | ||||
