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9620 240x320 optical fiber, filament, glow
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6863 240x320 light bulb, filament, light
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13143 240x320 light bulb, edisons lamp, filament
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19235 240x320 light bulb, edisons lamp, filament
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9871 240x320 bulb, spiral, filament
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7262 240x320 light bulb, edisons lamp, filament
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12002 240x320 light bulb, electricity, light
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7937 240x320 light bulbs, light, electricity