Description: 321 / (12) Current Conversion (E.G. Rectification, Derectification) (65) A.C. to D.C. Conversion (e.g., Rectification, Converter) (68) Mechanical Switch Type Converter (70) Rotating Contact Type Converter (e.g. Commutator and Brush)

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321 / 12

-> 65

-> 68

-> 70

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