Intended for use by miners, the lamp was actually developed both by Alphonse Dumas, an engineer at the iron mines of Saint-Priest and of Lac, near Privas, in the départment of Ardèche, France, and by Dr. Camille Benoît, a medical doctor in Privas.
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Although Ruhmkorff is often credited with the invention of the induction coil, it was in fact invented by Nicholas Callan in 1836.
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