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| View Original: | General Electric Mazda B electric light, ductile tungsten filament, c. 1910-1915 - DSC06553.JPG (3240x4320) | |||
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| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: General Electric Mazda B electric light, ductile tungsten filament, c. 1910-1915 - DSC06553.JPG Light bulb exhibited in the Franklin Institute Philadelphia Pennsylvania USA I took this photograph 2011-10-20 11 04 26 Daderot Light bulbs in the Franklin Institute Light bulb filaments Mazda light bulb | ||||
