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| View Original: | Weston Electric Lighting Co. incandescent light, sinusoidal filament, c. 1885 - DSC06551.JPG (3240x4320) | |||
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| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: Weston Electric Lighting Co. incandescent light, sinusoidal filament, c. 1885 - DSC06551.JPG Light bulb exhibited in the Franklin Institute Philadelphia Pennsylvania USA I took this photograph 2011-10-20 11 04 09 Daderot Light bulbs in the Franklin Institute Light bulb filaments | ||||
