File:Heroult refining furnace Transversal view Stoughton.PNG

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Summary

Description	Français : Vue transversale du four à arc électrique de Paul Héroult. English: Transversal view of the electric arc furnace invented by Paul Héroult.
Date	1908
Source	The metallurgy of iron and steel p.445
Author	Dean Bradley Stoughton (1873-1959)

Licensing

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