白熱電球の多彩な種類・用途(<特集>白熱電球130年の歴史と将来(白熱電球は本当に不要か?))
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概要
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Filament bulbs have a variety of applications such as interior and exterior of a car, pachinko and pachislot, illminations and other products without bulbs for general lighting which will go out of prodution since 2010.
- 2010-06-01