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The Story of Alternating Current Arc Welding

Demonstrates the differences between alternating current and direct current arc welding processes, and in particular the finer control available with AC machines at the time.
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Genre: Documentaire

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Pays: United States

Durée: 15 minutes

Qualité: HD

Libération: 1944

The Story of Alternating Current Arc Welding (1944) - IMDb  6