IPC Subgroup
H01F 19/02 Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
Introduced: September 1968
Last revised: January 2006
Full Title
Fixed transformers or mutual inductances of the signal type > Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES