Description: 321 / (12) Current Conversion (E.G. Rectification, Derectification) (65) A.C. to D.C. Conversion (e.g., Rectification, Converter) (75) Diode type Converter (76) With Converter Protective Means, Malfunction or Failure Detecting Means (77) Fusible or Air Gap Type Protective Device

Hierarchy/Derived subclasses

321 / 12-> 65-> 75-> 76-> 77

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