Description: 321 / (12) Current Conversion (E.G. Rectification, Derectification) (34) D.C. to A.C. Conversion (e.g., Derectification, Inverter) (41) Semiconductor Type Converter (42) S.C.R. Type Converter (49) With Phase Control
Hierarchy/Derived subclasses
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search just 321/49This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find
patents in those subclasses.