Description: 321 / (12) Current Conversion (E.G. Rectification, Derectification) (65) A.C. to D.C. Conversion (e.g., Rectification, Converter) (90) Semiconductor Type Converter (92) S.C.R. Type Converter (94) With Polyphase Input
Hierarchy/Derived subclasses
CIPO searches
search just 321/94- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((321/94 <IN> CPC) <OR> (321/95 <IN> CPC) <OR> (321/96 <IN> CPC) <OR> (321/97 <IN> CPC))
This 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.