IPC Subgroup
H01F 30/02 Auto-transformers
Introduced: January 1995
Last revised: January 2006
Full Title
Fixed transformers not covered by group > Auto-transformers
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES