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 (43) With Polyphase Output (45) With Phase Control Means
Hierarchy/Derived subclasses
CIPO search
search just 321/45This 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.